“Nirvana is the way of life which ensues when clutching at life has come to an end. In so far as all definition is clutching, nirvana is necessarily indefinable. It is the natural, ‘un-self-grasped’ state of the mind; and here, of course, the mind has no specific meaning, for what is not grasped is not known in the conventional sense of knowledge.”

— Alan Watts, The Way of Zen