The efforts to revive, renew, reform, rescue or return to Islam have been conducted by Muslim religious scholars, intellectuals, political leaders and spiritual leaders. This brief article seek to call notice the revival - the spictual revival - in the Muslim world in the 20th century, focusing on the Tablighi Jama'at, the "Tabligh Group" though it is difficult to offer a summary description of the Tablighi Jama'at organization - an organization with no paid staff, no records, no bureaucracy, and no phsical center. However, this revival movement may well prove to be the most enduring of all the religious and political impulses of the 20th century.