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What is life?

If you are reading this, then it is safe to assume that we have at least one thing in common: we are living beings. To exist can be overwhelming, especially because no one in the history of humanity has ever chosen to be born. Life is thrust upon us. One day we werenโ€™t. Then the next day, we were. Right now, you are. Though we did not receive a vote in our existence, every day we make the decision to persist. Whether it be a conscious or subconscious decision, whether itโ€™s easy or difficult, we are all here. We continue.

Can we define life?

Itโ€™s human nature to search for answers to (seemingly) simple questions. We natural beg for clarity, to seek the division between black and white. But life is many colors, a consumption of every hue; seen and unseen. While it may be easy to identify something that is living, pinpointing the characteristics of life โ€” as a whole or an entity โ€” can be much more difficult. The simple ideas of “life” can easily evolve into head-scratching explorations of quantum theory. In attempting to grasp a corner of understanding, we quickly discover there are whole worlds of meaning.

Is life something just experienced here on earth? Could the concept of life be summarized into a verb? Perhaps the biology of life is the sun rising, without fail, every morning and setting every night? Is the human body a host for a life force coursing through our lungs and pumping through our veins? Maybe life a noun – the physical reality of space from here to there? Are we in life? What if we are suffering through life? Could we be life? How can something that eight billion people on the earth today are objectively experiencing at the same time be so difficult to define? What are the parameters and who put them there? Do we have the right to define the indefinable? Is it self-righteous to do so?

What does the dictionary say?

It is often wise to steer clear of dictionary definitions of words that are heavier in meaning than in writing. It is helpful, however, to note that the Cambridge Dictionary calls life, โ€œthe period between birth and death.โ€ Sometimes dictionaries do their job and hand us the map to our destination. And if not a map, at least a finger pointing in the general direction. Life is the time spent between birth and death. Even simpler – life is time. The only thing certain about life is that it ends. Forever and ever and ever life has ended.

Life is the time given to us. But time runs out. Living matter eventually becomes nonliving matter. A living organism will transition to a dead organism. In the simple observance that all things must end, we find a truth about life we can grab a hold of; Life exists in a changing environment.

What do scientists say?

When it comes to the study of life, our scientific theories encounter some persistent issues. For every fundamental question we posit, scientists are asking ten more – because they too, are searching for the answers. Evolutionary biologists may attempt to define life as a series of dynamic, adaptive processes in which single cells and more complex life forms evolve in response to environmental changes. Through natural selection, these organisms develop characteristics of lifeโ€”thereby allowing life to persist across generations. This may be an argument for the origin of lifeโ€”but provides few definitions of life. In science writer Carl Zimmer โ€™s book, Lifeโ€™s Edge: The Search for What It Means to Be Alive, he discusses the difficulty that scientists and philosophers have in giving a definition to the meaning of life. He writes:

โ€œโ€˜It is commonly said,’ the scientists Frances Westall and Andrรฉ Brack wrote in 2018, ‘that there are as many definitions of life as there are people trying to define it.’ As an observer of science and of scientists, I find this behavior strange. It is as if astronomers kept coming up with new ways to define stars.โ€

Zimmer goes on to explain that some scientists claim one definitive answer is not necessary and that working life definitions can suffice.

โ€œNASA can come up with whatever definition helps them build the best machine for searching for life on other planets and moons. Physicians can use a different one to map the blurry boundary that sets life apart from death.โ€

In an excerpt, Zimmer mentions philosopher Carol Cleland who pushes back on the need for any kind of definition of life at all. She argues that searching for a definition of life is bad for science because it โ€œkeeps us from reaching a deeper understanding of what it means to be alive.โ€

โ€œAs a result, itโ€™s futile to search for a laundry list of features that will turn out to be the real definition of life. โ€œWe donโ€™t want to know what the word life means to us,โ€ Cleland said. โ€œWe want to know what life is.โ€

Cleland argues that we need to give up our search for a definition. And while it may be of some comfort to know that even the most educated minds of our time cannot confidently define life, it can also be discouraging. It makes us askโ€”if they canโ€™t explain this, who can? That being said, humans have made it this far and this long without all the answers and we will continue on until a higher power or greater force renders us extinct. But until then, we persist. Though our lives will inevitably end one day, someone elseโ€™s life will just be beginning. Somewhere the confused cries of a baby being heard for the first time will collide with the tears of those mourning our deaths. In that cyclical sense, life never ends. There will always be someone living – someone to take our spots, someone to fill the void.

So, while time runs out for the individual, it endures for the whole.

What do philosophers say?

For centuries, philosophers have been scratching their heads trying to define what life actually is. From ancient times, thinkers like Aristotle got the ball rolling by saying life is all about a soul and the ability to grow, reproduce, and move. Sounds simple enough. However, Aristotle’s categories of biological activity left many entities on the outside of life, looking in. But then fast-forward to Descartes, and he tried to reduce life to machines and mechanics. While helping us move forward in our thinking, Descartes definition of life felt a bit robotic. Modern philosophers, biologists, and everyone in between have been debating ever since, tossing in consciousness, DNA, artificial intelligence, and even extraterrestrial life. Itโ€™s like a never-ending group project where no one agrees on the final definition.

What does the Bible say?

For those of us who are still searching for a less scientific definition, and maybe a more spiritual, meaning of life, we can turn our attention to the Bible. What canโ€™t be answered by science can always be studied and analyzed from a Biblical standpoint. Rather than rely on facts, we are given the opportunity to journey to a new starting point come and make our way to our own conclusions. Because the Bible is not only a religious text, but also a historical one as well. Itโ€™s vital to keep an open mind when reading Scripture. Theologians offer plenty of different perspectives on important topics, albeit many are universally agreed upon and have stood the test of time.

According to the Wycliffe Global Alliance, the full Bible has been translated into 724 languages worldwide. It says over seven billion people, almost 97 percent of all people on earth, have access to some extent of scripture in their language. The expanse of this text makes way for numerous interpretations. Its reach proves we are not alone in the continuous search for answers and the quest to understand what it means to be alive.

The Bible talks about life in many ways. Here two categories are enlightening: earthly life and heavenly (eternal) life.

Earthly life:

Matthew 6:25-34

25 Therefore I tell you, do not be anxious about your life, what you will eat or what you will drink, nor about your body, what you will put on. Is not life more than food, and the body more than clothing? 26 Look at the birds of the air: they neither sow nor reap nor gather into barns, and yet your heavenly Father feeds them. Are you not of more value than they? 27 And which of you by being anxious can add a single hour to his span of life?[a] 28 And why are you anxious about clothing? Consider the lilies of the field, how they grow: they neither toil nor spin, 29 yet I tell you, even Solomon in all his glory was not arrayed like one of these. 30 But if God so clothes the grass of the field, which today is alive and tomorrow is thrown into the oven, will he not much more clothe you, O you of little faith? 31 Therefore do not be anxious, saying, โ€˜What shall we eat?โ€™ or โ€˜What shall we drink?โ€™ or โ€˜What shall we wear?โ€™ 32 For the Gentiles seek after all these things, and your heavenly Father knows that you need them all. 33 But seek first the kingdom of God and his righteousness, and all these things will be added to you.

34 Therefore do not be anxious about tomorrow, for tomorrow will be anxious for itself. Sufficient for the day is its own trouble.

This passage serves as a reminder that to worry is a waste of our fleeting time on earth. To live a real life, in all its fullness, and to have faith in God is all we can be expected to do. He will take care of us.

Ephesians 5:15- 21

15 Look carefully then how you walk, not as unwise but as wise,16 making the best use of the time, because the days are evil.17 Therefore do not be foolish, but understand what the will of the Lord is. 18 And do not get drunk with wine, for that is debauchery, but be filled with the Spirit, 19 addressing one another in psalms and hymns and spiritual songs, singing and making melody to the Lord with your heart, 20 giving thanks always and for everything to God the Father in the name of our Lord Jesus Christ, 21 submitting to one another out of reverence for Christ.

These verses tell us how to spend our days, as living creatures, on planet earth. The directive for human life is to praise the Lord and be kind. Simple, yet profound. What takes you two seconds to read requires a lifetime to practice.

Heavenly/Eternal life:

John 6:35

35 Jesus said to them, โ€œI am the bread of life; whoever comes to me shall not hunger, and whoever believes in me shall never thirst.

1 John 5:12

12 Whoever has the Son has life; whoever does not have the Son of God does not have life.

These verses take very complex systems of thought and philosophy, and attempt to simplify it for the sake of our understanding. While life on earth will end for everyone, God promises us eternal life in Heaven with Him. It is there that our souls will never stop rejoicing – the heavenly spirits singing of an infinite life where no one will ever be thirsty and no mouth will go unfed.

John 3:16

16 For God so loved the world,[a] that he gave his only Son, that whoever believes in him should not perish but have eternal life.

How should we spend life?

As with all faith-based texts, itโ€™s difficult to pinpoint an exact answer to anything and confidently state it as fact. We have been gifted a book that individuals have spent thousands of years trying to decipher. And new individuals will take on this task and spend thousands of years more looking for truth between the pages. Before the Bible, humans had to look elsewhere for answers to the existential pits in their stomachs and their confusion as to why theyโ€™d wake up every day on a spinning planet shared with a diverse collection of animal life – and all members of biological processes that caused life to continually survive and thrive. But now, the Word has been written. Itโ€™s in our hands to do with that what we will – to come to our own conclusions that help us sleep a little better at night and rise a little easier in the mornings. If anything, we can turn to the Bible for comfort and solaceโ€”while searching for the question of life.

In reading the passages about life on planet earth, it seems that maybe the definition of life is not nearly as important as what we do with life. How we spend our days is what gives our existence meaning. The Bible offers us a guideline and directions on how to make the most of our time as a living entity. One takeaway is that people of all faiths, all backgrounds, and all experiences are to be good, to be kind, to love, and to serve other living beings.

Colossians 3:12-14

12 Put on then, as God’s chosen ones, holy and beloved, compassionate hearts, kindness, humility, meekness, and patience,13 bearing with one another and, if one has a complaint against another, forgiving each other; as the Lord has forgiven you, so you also must forgive. 14 And above all these put on love, which binds everything together in perfect harmony.


What do you think? Please share your thoughts below.

Too often, people answer faith questions with dogmatic certitude and neglect the historic diversity and complexity of Christian ideas. The Questions Project is a resource that responds to questions about faith, history, and scripture in a way that honors the historic diversity and complexity of Christian thought. But, this is a work in process and we need your help. Please provide feedback. We are particularly interested in knowing what we have missed and how we can improve our responses. Please keep all comments kind or risk deletion.

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  • Exploring “life” helps us understand death and an afterlife in the Christian context, especially for those of us brought up in an evangelical tradition of overemphasis on salvation. Exploration expands a witness often limited by a dogmatic approach. Fear of “getting lost in the weeds” often weakens, rather than strengthens faith for many. Your team’s efforts to provide resources on a broad range of perspectives with an “unseen” heavy handed agenda is refreshing!!

    • I hope you meant withOUT an “unseen” heavy handed agenda, as that is our intent.

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