Ameere Kabeer Mir Syed Ali Hamdani (radiallahu anhu) Talking about Gratefulness and Patience in nutshell.

'O friend! Be thankful (to God) in whatever comes your way because gratelfulness increases comfort and blessings. If you cannot be thankful, then be pleased with the will of God, as submission to the will of God will lead you to prosperity, freedom and contentment. But if you cannot be pleased (with the will of God) then at least be patient because impatience leads to nothing but Hell.' From Epistles of Mir Syed Ali Hamdani (qadasallahu sirahu)