Sri Aurobindo
Letters of Sri Aurobindo
07. Sadhana through Love and Devotion
So long as the whole consciousness is not clear of doubtful stuff and the realisation of oneness confirmed in the supreme purity, the expression of the all-love is not advisable. It is by holding it in oneself that it becomes a real part of the nature, established and purified by joining with it the other realisations still to come. At present it is only a first touch and to dissipate it by expression would be very imprudent. The sex and vital might easily become active – I have known cases of very good yogis... in whom the viśvaprema became the viśvakāma, all-love becoming all-lust. This has happened with many both in Europe and the East. Even apart from that it is always best to solidify or confirm rather than to throw out and disperse. When the sadhana has 
progressed and the knowledge from above comes to enlighten and guide the love, then it will be another matter. My insistence on rejection of all untransformed vital movements is based on experience, mine and others’ and that of past yogas like the Vaishnava movement of Chaitanya (not to speak of the old Buddhist Sahaja dharma) which ended in much corruption. A wide movement such as that of all-love can only take place when the ground of Nature has been solidly prepared for it. I have no objection to your mixing with others, but only under a continual guard and control by a vigilant mind and will.