Abraham Chazan, Kuntres haHosafoth
“ Rabbeinu z"l said if things happen to him and he gets in an uproar over it and says how it's bad for him, H"Y (the Attribute of Judgement) says, "That's called 'bad'? I'll show you what's called 'bad'!" God forbid, and he makes it worse for him, God forbid. Likewise if he then makes more uproar, God save us, it gets worse, God forbid. But when the man acknowledges to H"Y what he's going through and says "B"H, good," then H"Y says, "You call that good? I'll show you what good is like," then it goes better for him, and so forth and so on. ”
