Sri Aurobindo
Letters of Sri Aurobindo
Volume IV - Part 2
There is no taboo in the Yoga on any feeling that is true and pure, but all the feelings undergo the stress of a pressure from the spiritual consciousness and whatever there is that is mixed, impure, egoistic or the feeling itself if it is fundamentally self-regarding, either disappears or, if it remains, becomes an obstacle to the progress. In the ascetic Yoga all human feelings are regarded as illusory and have to disappear – “the knots of the heart are cut” – so as to leave only the one supreme aspiration. In this Yoga the emotional being has not to be got rid of, but to undergo a transformation; the shortest way of transformation is to turn all the being to the Divine. But when that is done, then 
it is found that what is pure and true in any human relation survives, but with a rich and subtle change, or else new relations are established that come straight from the Divine. If, however, something resists the change, then it is quite possible that there may be an oscillation between blank indifference or vairagya and the indulgence of the untransformed feeling – the human vital on one side, the disillusioned Vairagi on the other side. Some even have to pass through this vairagya in order to reach the possibility of a divinised emotional nature, but that is not the normal movement of this Yoga.
As for being self-centred, it is obviously not the right thing for Yoga to be centred in the ego and revolving round it; one has to be centred in the Divine with all the movements turning round that centre – until they can all be in the Divine. One has naturally to think much of one’s own nature and its change, but that is inevitable for the sadhana – to prevent its turning into a self-centred condition, the aspiration to the Divine, vision of the Divine everywhere, the surrender to the Divine have to be made the main objective of the sadhana.