" Trade and religion were thus inextricably combined in Mecca. The pilgrimage to Mecca was the climax of the suq cycle, and the Quraysh reconstructed the cult and architecture of the sanctuary so that it became a spiritual center for all the Arab tribes. Even though the Bedouin were not much interested in the gods, each tribe had its own presiding deity, usually represented by a stone effigy. The Quraysh collected the totems of the tribes that belonged to their confederacy and installed them in the Haram so that the tribesmen could only worship their patronal deities when they visited Mecca. The sanctity of the Kabah was thus essential to the success and survival of the Quraysh, and their competitors understood this. "

― Karen Armstrong , Muhammad: A Prophet for Our Time