Migrant labor in the region, from which Bangladeshi citizens form a sizable minority, are brought in through the kafala system, which provides employment-based visas and bars workers from attaining longer-term residency. Like other Asian expatriates, Bangladeshi citizens have sought work in the region primarily to send remittances back to their families and share little in common culturally with their host societies. Although many have additionally been motivated by the proximity to Mecca in hopes of performing the rites of the Hajj, the majority of Muslims from Bangladesh working in the Gulf practice folk Islam that contains elements of Buddhism and Hinduism, in contrast with the more heterodox Wahhabism that has dominated the region since the discovery of oil and the creation of Saudi Arabia.