Excellent thoughts from brother Rafi!
Dear Dr Badar,
Allah = Rabb = Sustainer = "Foster" - you mean Fosterer if that is the right word.
Allah is the Supreme deity, God with capital G.
For Himself He wants nothing. He guides us that by helping people we help our own 'self'.
14:8 And Moses said, “If you deny the truth and show ingratitude, you and all on earth together, know that God is absolutely Free of want, Worthy of all praise.” [He is in no need of your worship]
13:17 .... Paraphrased - [The real existence on earth is of the person or the system that benefits humanity]