Sri Aurobindo
Letters of Sri Aurobindo
Volume I - Part 2
You ask whether the mind and vital do not come in the way as well as the physical. Yes, but when I speak of the physical consciousness, I mean the physical mind and the physical vital as well as the body consciousness proper. This physical mind and physical vital are concerned with the small ordinary movements of life and are governed by a very external view of things and by habitual small reactions and do not respond at once to the inner consciousness not because they are in active opposition to it, as the vital mind and vital proper can be, but because they find it difficult to change their habitual movements. It is this now that you feel and that makes you think you have a poor responsiveness to the inner experience. But that is not a fact; in your mind and in a great part of your vital there is a considerable capacity of response. As for the physical its difficulty is universal in everybody and not peculiar to you. It has come up because it always comes up in the sadhana when the physical consciousness has to be worked upon for the necessary change. As soon as that is done, the difficulty you feel will first diminish and then go.
It is this work that is going on and when you felt the white light in meditation and the result which lasted even after opening 
the eyes, the head and eyes cool and all vast and wide, it was this working taking place in your physical mind to change it. The rest of the physical consciousness was still undergoing another kind of working and so felt heat and not this release and wideness. But afterwards the working can go down first to the heart and then still lower and to all the body and the same release and wideness come there. Naturally, at present these results are not permanent but only for a time, they come as experiences, not lasting realisations. But it cannot be otherwise at the present stage. These experiences, however passing, are meant to prepare and do prepare the different parts of the nature.