Is it valid to say, according to the methodology of the People of the Sunnah and the Community, that "the heart is a Kaaba in which Allah is worshipped, and Allah - Exalted and Glorified be He - dislikes the crowding of other idols"?

The saying that "the heart is the Kaaba and the Worshipped One is not pleased with the مزاحمة (competition/intrusion) of idols" is not known to have originated from the Salaf (pious predecessors). Rather, some scholars use it in sermons and guidance to explain that the servant's heart should be purely devoted to Allah the Almighty. Thus, one should love and hate, befriend and antagonize, fear and hope, and act solely for His sake. No love, intention, or will should compete with Him therein, because such competition might be contrary to the servant's servitude to his Lord, leading him to love things that compete with the love of Allah. As the Prophet, peace and blessings be upon him, said: "Wretched is the slave of the dinar, the dirham, the qatifah (velvet cloak), and the khamisah (embroidered garment). If he is given, he is pleased; if he is not given, he is not pleased." Such words are used metaphorically, by way of parables, to clarify the intended meaning.