If men knew the virtue of belief in Allah, they will not look at what Allah enjoys the enemies of the choice and the comfort of life in this world, their lives in this world will be less than that which they trod on with their legs, they will lead a life of ease and comfort through believing in Allah, and will get pleasure from (living) in the gardens of Paradise with the friends of Allah. Believing in Allah, the Great and Almighty, is sociability for every estrangement, friendship for every loneliness, light against every darkness, strength for every weakness, and cure for every illness.

People had been before you. They were killed and burnt and sawed with the saw. And they did not take vengeance on them for ought except that they believed in Allah, they Mighty, the Praised. So ask (Allah to grant you) their ranks. Be patient toward the misfortunes of your time, then you get their consequence.

Reference: Imam al Sadiq by al - Muzaffar