Sri Aurobindo
Letters of Sri Aurobindo
Volume 3
Thirst for the Divine is one thing and depression is quite another, nor is depression a necessary consequence of the thirst being unsatisfied; that may lead to a more ardent thirst or to a fixed resolution and persistent effort or to a more and more yearning call or to a psychic sorrow which is not at all identical with depression and despair. Depression is a clouded grey state in its nature and it is more difficult for light to come through clouds and greyness than through a clear atmosphere. That depression obstructs the inner light is a matter of general experience. The Gita says expressly, “Yoga should be practised persistently with a heart free from depression” – acetasāḥ anirvin Bunyan in The Pilgrim’s Progress symbolises it as the Slough of Despond, one of the perils of the way that has to be overcome. It is no doubt impossible to escape from attacks of depression, almost all sadhaks go through these attacks, but the principle is that one should react against them and not allow them by any kind of mental encouragement or acceptance of their suggestions to persist or grow chronic.
It is hardly a fact that sorrow is necessary in order to make the soul seek the Divine. It is the call of the soul within for the Divine that makes it turn, and that may come under any circumstances – in full prosperity and enjoyment, at the height of outward conquest and victory without any sorrow or disappointment, but by a sudden or a growing enlightenment, by a flash of light in the midst of sensuous passion, as in Bilwamangal1, by the perception that there is something greater and truer than this outward life lived in ego and ignorance. None of these turns need be accompanied by sorrow and depression. Often one turns saying, “Life is all very well and interesting enough as a game, but it is only a game, the spiritual reality is greater than the life of the mind and senses.” In whatever way it comes, it is the call of the Divine or the soul’s call to the Divine that matters, the attraction of it is something far greater than the things that usually hold 
the nature. Certainly if one is satisfied with life, entranced by it so that it shuts out the sense of the soul within or hampers the attraction to the Divine, then a period of vairagya, sorrow, depression, a painful breaking of the vital ties may be necessary and many go through that. But once the turn made, it should be to the one direction and a perpetual vairagya is not needed. Nor when we speak of cheerfulness as the best condition, do we mean a cheerful following of the vital life, but a cheerful following of the path to the Divine which is not impossible if the mind and heart take the right view and posture. At any rate, if positive cheerfulness is not possible in one’s case, still one should not acquiesce in or mentally support a constant depression and sadness. That is not at all indispensable for keeping turned to the Divine.
In speaking of the Buddhist and his nine years of the wall and other instances, the Mother was only disproving the view that not having succeeded in seven or eight years meant unfitness and debarred all hope for the future. The man of the wall stands among the greatest names in Japanese Buddhism and his long sterility did not mean incapacity or spiritual unfitness; but apart from that there are many who have gone on persisting for long periods and finally prevailed. It is a common, not an uncommon experience.
I answer about the psychic and vital love tomorrow.