Those who attained mergence with the Creator become integral Parts of Him forever. But, when necessary, in order to accomplish Their Missions on Earth or other planets, for example, — They can separate a part of Themselves without losing oneness with Him.
Jesus described this using an image of a vine (John 15): out of the "Soil" of Consciousness of Universal God-the-Father comes the
"Stem" — Consciousness of a Divine Teacher (Whom Jesus Christ was Himself); "branches" on that
"stem" are closest disciples — Apostles (see also ).
It is as these "Stems" that Divine Teachers manifest Themselves for embodied people. At that They can either have physical bodies (be embodied) or not. But Those Who have bodies at the same time can work with other parts of Consciousness at any part of the planet. They (as Consciousnesses) are incomparably greater than our planet; in Their bodies They place only very small parts of Themselves.
Among Those of Them Who currently have bodies is the Divine Teacher Sathya Sai Baba [8,14,15,35]. He is assisting worthy disciples of God in cooperation with Jesus, Krishna, Babaji, Huang-Di, Chaitanya, Assiris, Juan Matus, Genaro, Ngomo, Maenuel (also known as Alexander Svirskiy), Apostles Philip, Andrew, John and Mark as well as many Others .