"From the Mercy of Allah Ta'ala with His worshippers is that He troubles them with the Duniya and its worry and annoyance, so that they do not become calm, pleased with it and do not become tranquil with the Duniya. Therefore they desire the eternal bliss in His land of Paradise and next to Him. Allah leads them to it with the whip of trials and tests. He prevents them from the Duniya so He can give it in the Hereafter, He trials them so that he can give them relief, He causes them to die to resurrect them."