Radhasoami

'Radha' aadi surat ka naam 'Soami' shabd nij dhaam,
'Surat Shabd' aur 'Radha Soami' doono naam ek kar jaani.
                                                  - Huzur Soamiji Maharaj.

Radha is the name of very first flow of Holy Spirits, whose existence created this universe. This flow is the base source of all the spirits. When a spirit turns to the direction of  sound like lord, which is the main source of the flow of Holy Spirits, the divine sound is known as 'soami'. The flow of Holy Spirits is called 'Radha'. Likewise, 'Soami' is the name of 'Divine Sound' which created the very early flow of Holy Surat. It is sounding everytime in our insight, and is called the inner sound. In this way 'Surat Shabd'  and 'Radha Soami' has the similar meaning.