Om Swami
How do I deal with a heavy, low emotion when it takes hold of me?
Ask what you feel and why
Emotions can catch anyone, like a cold, and it does not mean you were careless. Ask yourself what you are feeling and why. The mind is then compelled to rise above its noise and speak the real thing.
Question that feeling: what am I feeling right now, and why, what is the cause? The moment you ask for the cause, the mind is compelled to answer.