Sri Aurobindo
Letters of Sri Aurobindo
02. The Triple Transformation: Psychic – Spiritual – Supramental
Sri Aurobindo cannot undertake to guide you as your Guru, for the reason that he takes as disciples only those who follow his special path of yoga; your experiences follow a different line. In his yoga there may be an occasional current in the spine as in other nerve channels or different parts of the body, but no awakening of the Kundalini in this particular and powerful fashion. There is only a quiet uprising of the consciousness from the lower centres to join the spiritual consciousness above and a descent of the Divine Force from above which does its own work in the mind and body – the manner and stages varying in each sadhak. A perfect confidence in the Divine Mother and a vigilance to repel all wrong suggestions and influences is the main law of this yoga. Your opening having once been so powerful on the more usual Tantric lines (even without your own will intervening), it is hardly probable that it could now change easily to other lines – any such effort might create a serious disturbance. In speaking of a competent Guru Sri Aurobindo meant one who had himself practised this opening of the centres and become siddha in that line of yoga. It should not be impossible to find one – when one has the call for the Guru, the Guru sooner or later comes. Meanwhile to put away fear and have confidence in the Divine working is indispensable – but no effort should be made to force the pace by concentrated meditation unless you have a guide whom you can trust – a clear guidance from within or a guide from without. The inspiration about the Ida nadi and the subsequent working of the Shakti show that there was an intervention at a critical moment and that the call to it whenever needed is likely to be effective.
In the experiences proper related in your first letter there is absolutely nothing that should have disturbed you – all was quite normal, the usual experiences of the yogin at such a juncture, and very good and powerful, such as do not come except by 
the grace of the Divine. Probably the opening came after slow invisible preparation as a result of the meditation on the lotus at the top of the head; for that is always an invitation to the Kundalini to awake or for the lower consciousness to rise and meet the higher. The disturbing factors came with the feeling of discomfort in the heart due to some resistance in the physical being which is very often felt and can be overcome by the working of the Force itself and the fear that came afterwards in the seats of the vital Nature, heart, navel etc. But that was no part of the experience; it was an interference by a wrong reaction from the lower or exterior consciousness. If you had not allowed yourself to be disturbed, probably nothing untoward would have distorted the process. One must not get frightened by unusual states or movements or experiences, the yogi must be fearless, abhī; it is absurd to have a fear because one can control one’s states; that is a power very much to be desired and welcomed in yoga.
The crises related in the second letter would hardly have come, if there had not been this reaction; but in any case there was the intervention and setting right of the trouble. However these reactions and the fact that the disturbance came show that something in the exterior consciousness is not altogether prepared; it is better to wait and seek for a guide so that ignorant steps or reactions may not bring again a serious trouble or danger. It is all that Sri Aurobindo can say by way of enlightenment and advice. He does not usually intervene with anyone not his disciple, but as your case was an unusual one and your call was great he has given you what light he can on your experience.