When Breath Becomes Air

by Paul Kalanithi

The problem, however, eventually became evident: to make science the arbiter of metaphysics is to banish not only God from the world but also love, hate, meaning—to consider a world that is self-evidently not the world we live in. That’s not to say that if you believe in meaning, you must also believe in God. It is to say, though, that if you believe that science provides no basis for God, then you are almost obligated to conclude that science provides no basis for meaning and, therefore, life itself doesn’t have any. In other words, existential claims have no weight; all knowledge is scientific knowledge.

As strong as that makes its ability to generate claims about matter and energy, it also makes scientific knowledge inapplicable to the existential, visceral nature of human life, which is unique and subjective and unpredictable. Science may provide the most useful way to organize empirical, reproducible data, but its power to do so is predicated on its inability to grasp the most central aspects of human life: hope, fear, love, hate, beauty, envy, honor, weakness, striving, suffering, virtue. Between these core passions and scientific theory, there will always be a gap.

When you come to one of the many moments in life where you must give an account of yourself, provide a ledger of what you have been, and done, and meant to the world, do not, I pray, discount that you filled a dying man’s days with a sated joy, a joy unknown to me in all my prior years, a joy that does not hunger for more and more but rests, satisfied. In this time, right now, that is an enormous thing.

At home in bed a few weeks before he died, I asked him, “Can you breathe okay with my head on your chest like this?” His answer was “It’s the only way I know how to breathe.” That Paul and I formed part of the deep meaning of each other’s lives is one of the greatest blessings that has ever come to me.

Paul’s decision to look death in the eye was a testament not just to who he was in the final hours of his life but who he had always been. For much of his life, Paul wondered about death—and whether he could face it with integrity. In the end, the answer was yes. I was his wife and a witness.