Sri Aurobindo
Letters of Sri Aurobindo
Volume IV - Part 2
Fragment ID: 13861
There are two conditions in which it [the vital] becomes like that [non-cooperative]: (1) when its ordinary (ego) actions or motives of action are not allowed to it, (2) when one goes very much down into the physical, the vital sometimes or for a time becomes inert unless or until there is the Force from above.