Eidolon

“I’m a simple man without a lot of complicated twists and turns. Look down my throat and you can see out my ass.”
― Liu Cixin, The Three-Body Problem

“Both men had talked of their intentions to commit suicide. Both used the typical argument —they had nothing more to expect from life. In both cases it was a question of getting them to realize that life was still expecting something from them; something in the future was expected of them. We found, in fact, that for the one it was his child whom he adored and who was waiting for him in a foreign country. For the other it was a thing, not a person. This man was a scientist and had written a series of books which still needed to be finished. His work could not be done by anyone else, any more than another person could ever take the place of the father in his child’s affections. This uniqueness and singleness which distinguishes each individual and gives a meaning to his existence has a bearing on creative work as much as it does on human love. When the impossibility of replacing a person is realized, it allows the responsibility which a man has for his existence and its continuance to appear in all its magnitude. A man who becomes conscious of the responsibility he bears toward a human being who affectionately waits for him, or to an unfinished work, will never be able to throw away his life. He knows the “why” for his existence, and will be able to bear almost any “how.” The”
― Viktor E. Frankl, Man's Search for Meaning

“What did that word mean to me? Earth? I thought of the great bustling cities where I would wander and lose myself, and I thought of them as I had thought of the ocean on the second or third night, when I had wanted to throw myself upon the dark waves. I shall immerse myself among men. I shall be silent and attentive, an appreciative companion. There will be many acquaintances, friends, women—and perhaps even a wife. For a while, I shall have to make a conscious effort to smile, nod, stand and perform the thousands of little gestures which constitute life on Earth, and then those gestures will become reflexes again. I shall find new interests and occupations; and I shall not give myself completely to them, as I shall never again give myself completely to anything or anybody. Perhaps at night I shall stare up at the dark nebula that cuts off the light of the twin suns, and remember everything, even what I am thinking now. With a condescending, slightly rueful smile I shall remember my follies and my hopes.”
― Stanisław Lem, Solaris

“On the blank leaf glued to the inner back cover I drew the double curve within the circle, and blacked the yin half of the symbol, then pushed it back to my companion. 'Do you know that sign?'

He looked at it a long time with a strange look, but he said, 'No.'

'It's found on Earth, and on Hain-Davenant, and on Chiffewar. It is yin and yang. Light is the left hand of darkness... how did it go? Light, dark. Fear, courage. Cold, warmth. Female, male. It is yourself, Therem. Both and one. A shadow on snow.' ”
― Ursula K. Le Guin, The Left Hand of Darkness