Sri Aurobindo
Letters of Sri Aurobindo
CWSA 35
1933 [1]
As for faith, you write as if I had never had a doubt or any difficulty. I have had worse than any human mind can think of. It is not because I have ignored difficulties, but because I have seen them more clearly, experienced them on a larger scale than anyone living now or before me that, having faced and measured them, I am sure of the results of my work. Even if I still saw the 
chance that it might come to nothing (which is impossible), I should go on unperturbed, because I would still have done to the best of my power the work that I had to do and what is so done always counts in the economy of the universe. But why should I feel that all this may come to nothing when I see each step and where it is leading and every week and day – once it was every year and month and hereafter it will be every day and hour – brings me so much nearer to my goal? In the way that one treads with the greater Light above, even every difficulty gives its help and has its value and the Night itself carries in it the burden of the light that has to be.
As for your own case, it comes to this that experiences come and stop, there are constant ups and downs, in times of recoil and depression no advance at all seems to have been made, there is as yet no certitude. So it was with me also, so it is with everyone, not with you alone. The way to the heights is always like that up to a certain point, but the ups and downs, the difficulties and obstacles are no proof that it is a chimera to aspire to the summits.
5 January 1933