In a remarkable letter which he wrote in nineteen-eighteen, he said, 'I must, before I die, find some way to say the essential thing that is in me, that I have never said yet, a thing that is not love, or hate, or pity, or scorn, but the very breath of life, fierce and coming from far away, bringing into human life the vastness and the fearful passionless force of non-human things.'
