... while social life of some kind or the other is always there but the basis of our action should not be social consciousness or social acceptance and social approval but what is true and right and beautiful.
Yoga means union with the Divine. In practice it implies coming in contact with and being established in higher and higher states of consciousness. It is the means to grow in spiritual and eventually the Divine Consciousness.
When man has largely mastered his vital animal nature then we can say that his human evolution is nearing completion and the spiritual evolution is ready to begin.
At best they invite some gods and beings of the vital world where much falsehood is mixed with fragments of truth, at worst they invoke certain dangerous forces in the atmosphere.