Nachman of Breslov

“ He went yet again to his father and begged him direly until his father felt compelled to travel with him. For his father did not want to let his son travel alone, since he was his only son. So his father told him, "Look, I will go with you. I'll show you that [this tzaddik] is nothing at all." They harnessed the carriage and set out. The father said to his son, "With this I will make a test: if everything goes orderly, it is from Heaven, and if not, it is not from Heaven that we should travel and we will return." ”

“ There was once a rabbi who had no children. Later, he had an only son and he raised him and made him a wedding. The son would sit in an attic room and learn [i.e. study Torah] , as is the way with the wealthy. He would study and pray constantly, except that he felt in himself a lacking [due to] some deficiency, but he did not know what, and he had no taste [satisfaction] in his learning and praying. ”