The following are my favorite quotes from Hermann Hesse's Siddhartha.
A goal stood before Siddhartha, a single goal: to become empty, empty of thirst, empty of wishing, empty of dreams, empty of joy and sorrow.
When you throw a rock into the water, it will speed on the fastest course to the bottom of the water. This is how it is when Siddhartha has a goal, a resolution. Siddhartha does nothing, he waits, he thinks, he fasts, but he passes through the things of the world like a rock through water, without doing anything, without stirring; he is drawn, he lets himself fall. His goal attracts him, because he doesn't let anything enter his soul which might oppose the goal. This is what Siddhartha has learned among the Samanas. This is what fools call magic and of which they think it would be effected by means of the daemons. Nothing is effected by daemons, there are no daemons. Everyone can perform magic, everyone can reach his goals, if he is able to think, if he is able to wait, if he is able to fast.
"And what's the use of that? For example, the fasting--what is it good for?" "It is very good, sir. When a person has nothing to eat, fasting is the smartest thing he could do. When, for example, Siddhartha hadn't learned to fast, he would have to accept any kind of service before this day is up, whether it may be with you or wherever, because hunger would force him to do so. But like this, Siddhartha can wait calmly, he knows no impatience, he knows no emergency, for a long time he can allow hunger to besiege him and can laugh about it. This, sir, is what fasting is good for."
Out of all secrets of the river, he today only saw one, this one touched his soul. He saw: this water ran and ran, incessantly it ran, and was nevertheless always there, was always at all times the same and yet new in every moment! Great be he who would grasp this, understand this!
Slowly blossomed, slowly ripened in Siddhartha was the realization, the knowledge, what wisdom actually was, what the goal of his long search was. It was nothing but a readiness of the soul, an ability, a secret art, to think every moment, while living his life, the thought of oneness, to be able to feel and inhale the oneness.
In this hour, Siddhartha stopped fighting his fate, stopped suffering. On his face flourished the cheerfulness of a knowledge, which is no longer opposed by any will, which knows perfection, which is in agreement with the flow of events, with the current of life, full of sympathy for the pain of others, full of sympathy for the pleasure of others, devoted to the flow, belonging to the oneness.