 The term Uwaisīyaan refers to those Sufis who have gained the Sufi spiritual chain from another Sufi without physically meeting them in this world.It can refer to a school of Sufism, and its singular form, Uwaisi, refers to a single individual, who are Sunni Muslims.In the science of spirituality of Islam (Tasawwuf) the Uwaisi Transmission occurs when the spirits of righteous believers ("saliheen", "awliya") meet in the world called "`alam al-arwaah" (the world of spirits) which is beyond "`alam al-ajsam" (the material plane).