A human being is a part of a whole, called by us _universe_, a part
limited in time and space. He experiences himself, his thoughts and
feelings as something separated from the rest... a kind of optical
delusion of his consciousness. This delusion is a kind of prison for
us, restricting us to our personal desires and to affection for a few
persons nearest to us. Our task must be to free ourselves from this
prison by widening our circle of compassion to embrace all living
creatures and the whole of nature in its beauty.