There was a time in my life when I became very low. It seemed as if my world was in pieces. What I was feeling was not yet clinical depression, but I had the sense that it was not far away.
I spoke to a friend who was a psychotherapist. Her reply was surprising. “I know you well enough," she said, "to know that you can cure yourself, I'll send you the literature and leave you to work out how.”
She did. I was particularly struck by those approaches called "cognitive". They suggest that what we feel is largely determined by what we think. That made sense.
We react to events as we perceive them, not as they are in themselves. If we learn to see them differently — if we "reframe” them — we can alter our emotional reactions.