Irvin Yalom. Executioner of love (№ 454753)

Both of them were chicks with broken wings, each of which tried to fly by grabbing another equally sick chick. People who feel empty are never healed by connecting with another incomplete person. On the contrary, two birds with broken wings, united, make a very clumsy flight. No amount of patience can help them fly; and in the end they must be separated and the wounds healed each separately.