Transience of this world and causes of decline in God''s blessings

I also stand witness that Muḥammad — the peace and blessings of Allāh be upon him and his progeny — is His slave and His Messenger, chosen from His creations, selected for detailing His realities, picked for His selected honours and chosen for His esteemed messages. Through him the signs of guidance have been lighted and the gloom of blindness (misguidance) has been dispelled.