When you feel these fits of depression and despondency coming on, you must learn to stand aside from them and refuse to identify yourself with the emotions which express them. They are simply other forms of ego manifestation. With time and practice, you will be able to do this. The Short Path affirmations and meditations are essential at such a time, for they help you to acquire the detachment necessary to recognize the moods for what they are.
One student asked: "But how can one identify oneself with something one doesn't know?" Another one replied: "That is where faith in something beyond the intellect comes in!" P.B. said: "Yes, if that faith is intense enough it will be sufficient to lead to the desired result. If not, if one cannot have faith in the Overself, then a Teacher is necessary. It is through faith in the Teacher that the student is helped to knowledge of the Overself which he finds so difficult to reach by himself."
In this matter of sadness and depression, one should also be careful not to take on the moods of others. Sometimes, people who are sensitive do this. If extra-sensitive, they can even take on for a short time the symptoms of their ailments.
-- Notebooks Category 6: Emotions and Ethics > Chapter 3: Discipline Emotions > # 87