How man sways between Tawhid and Shirk, and between Joy and Despair, according to His Circumstances Allah says:وَإِذَا مَسَّ النَّاسَ ضُرٌّ دَعَوْا رَبَّهُم مُّنِيبِينَ إِلَيْهِ ثُمَّ إِذَا أَذَاقَهُم مِّنْهُ رَحْمَةً إِذَا فَرِيقٌ مِّنْهُم بِرَبِّهِمْ يُشْرِكُونَAnd when harm touches men, they cry sincerely only to their Lord, turning to Him in repentance; but when He gives them a taste of His mercy, behold, a party of them associates partners in worship with their Lord.Allah tells us that when man is in dire straits, he calls upon Allah alone with no partner or associate, then when times of ease come and they have the choice, some people associate others with Allah and worship others alongside Him