Why allow yourself to be overpowered like that? These fits of despair are quite irrational—there is no true reason why you should feel so despondent. Our solicitude and help are there always—in spite of these attacks your spiritual capacity is constantly increasing — only remain firm, the victory of the Truth in you is then inevitable. I will do all to change your consciousness —only open yourself. Keep yourself open as much as you can in quietude—that is the only condition I ask of you.
Ref: Letters on Yoga – IV