The attainments are by birth, drugs, incantations, purificatory action or trance.
Parinama, that is the change of a particular life-state to another life-state is brought about by these four siddhis; that means, due to use to the above.
Created minds proceed from egoism alone, springs from the sense of individuality.
There being a difference of activity, one mind is the director of many. The One Lord becomes many by his Lordship.