The mind of one meditating on a single object becomes one-pointed. And one-pointedness of mind leads to abidance in the self. Real attainment is to be fully conscious, to be aware of surroundings and the people around, to move among them all, but not to merge consciousness in the environment. One should remain in inner independent awareness.
Ramana MaharshiTill you reach the state of jnana and thus wake out of maya you must do social service by relieving suffering whenever you see it. But even then you must do it without ahankara, i.e., without the sense of 'I am the doer', but with the feeling 'I am the Lord's tool'.
Ramana Maharshi