Agnosticism is no excuse for indecision. If anything, it is a catalyst for action; for in shifting concern away from a future life and back to the present, it demands an ethics of empathy rather than a metaphysics of fear and hope.

So the Buddha is presenting awakening not as a single mystical experience that may come upon us at some meditation, some private moment of transcendence, but rather as a new engagement with life. He is offering us a relationship to the world that is more sensitized to suffering and the causes of suffering, and he gives rise to the possibility of another kind of culture, another kind of civilization.

The Buddha described his teaching as "going against the stream." The unflinching light of mindful awareness reveals the extent to which we are tossed along in the stream of past conditioning and habit. The moment we decide to stop and look at what is going on (like a swimmer suddenly changing course to swim upstream instead of downstream), we find ourselves battered by powerful currents we had never even suspected - precisely because until that moment we were largely living at their command.

Each time the dharma moved into a different civilization or historical period, it faced a twofold challenge: to maintain its integrity as an internally coherent tradition, and to express its vision in a way that responded to the needs of the new situation.

I reject karma and rebirth not only because I find them unintelligible, but because I believe they obscure and distort what the Buddha was trying to say. Rather than offering the balm of consolation, the Buddha encouraged us to peer deep and unflinchingly into the heart of the bewildering and painful experience that life can so often be.

This deep agnosticism is more than the refusal of conventional agnosticism to take a stand on whether God exists or whether the mind survives bodily death. It is the willingness to embrace the fundamental bewilderment of a finite, fallible creature as the basis for leading a life that no longer clings to the superficial consolations of certainty.

This body is fragile. It is just flesh. Listen to the heartbeat. Life depends on the pumping of a muscle.