Self Defence is Necessary

It is true that one has to try to keep the inner condition under all circumstances, even the most adverse; but that does not mean one has to accept, unnecessarily, unfavourable conditions when there is no good reason for their being allowed to go on. Especially, the nervous system and the physical cannot bear an excessive strain,—the mind too and the higher vital; your fatigue came from the strain of living in the One Consciousness and at the same time exposing yourself too much to prolonged contacts from the ordinary consciousness. A certain amount of self-defence is necessary, so that the consciousness may not be pulled down or out constantly into the ordinary atmosphere or the physical strained by being forced into activities that have become foreign to you. Those who practise yoga often seek refuge in solitude from these difficulties; that is unnecessary here, but all the same you need not submit to being put under this kind of useless strain always.

Ref : Letters on Yoga Vol. II