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). Whoever takes knowledge through spirituality from a master in
`alam al-arwaah is called "Uwaisi". This means of transmission is considered as powerful and effective as the physical relation of master and disciple. The term "Uwaisi" is derived from the name of
Owais al-Qarani, who never met the
Islamic prophet Muhammad in person, yet was fully aware of his spiritual presence at all points in his life. In
Classical Islam and the Naqshbandi Sufi Tradition, by
Hisham Kabbani, it is noted that: ==Contemporary Western orders==