The idea that all sadhaks must be aloof from each other and at daggers drawn is itself a preconceived idea that must be abandoned. Harmony and not strife is the law of yogic living. This preconceived idea arises perhaps from the old notion of Nirvana as the aim; but Nirvana is not the aim here. The aim here is fulfilment of the Divine in life and for that, union and solidarity are indispensable.
The ideal of the yoga is that all should be centred in and around the Divine and the life of the sadhaks must be founded on that firm foundation, their personal relations also should have the Divine for their centre. Moreover, all relations should pass from the vital to the spiritual basis with the vital only as a form and instrument of the spiritual – this means that, from whatever relations they have with each other, all jealousy, strife, hatred, aversion, rancour and other evil vital feelings should be abandoned, for they can be no part of the spiritual life. So, also, all egoistic love and attachment will have to disappear – the love that loves only for the ego’s sake and, as soon as the ego is hurt and dissatisfied, ceases to love or even cherishes rancour and hate. There must be a real living and lasting unity behind the love. It is understood of course that such things as sexual impurity must disappear also.
Absence of love and fellow-feeling is not necessary for nearness to the Divine; on the contrary, a sense of closeness and oneness with others is a part of the divine consciousness into which the sadhak enters by nearness to the Divine and the feeling of oneness with the Divine. An entire rejection of all relations is indeed the final aim of the Mayavadin, and in the ascetic yoga an entire loss of all relations of friendship and affection and attachment to the world and its living beings would be regarded as a promising sign of advance towards liberation, Moksha; but even there, I think, a feeling of oneness and unattached spiritual sympathy for all is at least a penultimate stage, like the compassion of the Buddhist, before the turning to Moksha or Nirvana. In this yoga the feeling of unity with others, love, universal joy and Ananda are an essential part of the liberation and perfection which are the aim of the sadhana.
Reference : Letters on Yoga Vol II