Perfect Master is the English term Meher Baba began to use in his writing as early as 1925[1] to denote the Eastern idea of a sadguru (Vedanta) or a qutub (Sufism).
A Perfect Master, according to Baba, is a God-realized person (one whose limited individualized consciousness has merged with God) who can use his Divine attributes of Infinite Power, Knowledge and Bliss for the spiritual upliftment of others.
When one of the five Perfect Masters "drops" his physical body, Baba says, another God-realized soul among the 56 incarnate at that time replaces him by taking up that office in that moment.
"The number of God-Realized souls on earth is eternally fixed at fifty-six and is never altered, except during Avataric ages when God directly descends as a man.
According to Meher Baba the Avatar appears on Earth every 700–1400 years, and is brought down into human form by the five Perfect Masters of that age to aid in the process of moving creation in its never-ending journey toward Godhood.
Unlike the Perfect Master, or any of the other sub-types of God-realized souls, the Majzoob is absorbed in God to such a degree that he cannot be of any direct assistance to anyone else in creation though he can be of indirect help to those who honor him.
According to Meher Baba the Majzoob has no experience of the gross, subtle, or mental worlds, but is entirely absorbed in the bliss of his state of Godhood.