Five Pillars of Islam The believer should be self-aware and examine their intentions in performing the pilgrimage. This should lead to constant striving for self-improvement. A pilgrimage made at any time other than the Hajj season is called an "Umrah", and while not mandatory is strongly recommended. Also, they make a pilgrimage to the holy city of Jerusalem in their alms-giving feast. Twelver Shia Islam has five Usul al-Din and ten Furu al-Din, i.e., the Shia Islamic beliefs and practices. The Twelver Shia Islam Usul al-Din, equivalent to a Shia Five Pillars, are all beliefs considered foundational to Islam, and thus classified a bit
Islam in the United States into prison as non-Muslims. He also says that 80% of the prisoners who "find faith" while in prison convert to Islam. These converted inmates are mostly African American, with a small but growing Hispanic minority. Waller also asserts that many converts are radicalized by outside Islamist groups linked to terrorism, but other experts suggest that when radicalization does occur it has little to no connection with these outside interests. There were calculated to be 2.595 million Muslim adherents across the United States in 2010. Islamic populations are 0.6% of the US population per Fareed Zakaria quoting Pew Research Center, 2010.