I am astonished, disappointed, pleased with myself. I am distressed, depressed, rapturous. I am all these things at once, and cannot add up the sum. I am incapable of determining ultimate worth or worthlessness; I have no judgment about myself and my life. There is nothing I am quite sure about. I have no definite convictions - not about anything, really. I know only that I was born and exist, and it seems to me that I have been carried along. I exist on the foundation of something I do not know.
—
C.G. Jung, near the end of his life, in Memories, Dreams.