Don't let it feed on the heart. Otherwise it will become a habit, and you will become weak and debilitated, upset over every trifling mistake. Discouragement is an enemy, an obstacle. It makes the mind restless and the nerves disordered. The brain becomes dull and murky.
Discouragement is a bad habit, a block to clear intelligence and discernment.
We must practice putting the mind back into shape. Before we do anything, while we're doing it, and after it's done, we have to practice keeping the mind cheerful and bright, with a constant sense of well-being. This will help us to gain strength of body and strength of mind and to enjoy living. The mind will blossom, and whatever we have to learn we will understand and remember with ease, just as a blossoming flower opens itself to welcome drops of dew and fresh air. What this means is that there are other pleasures, such as the pleasure of watching a play or a movie, mixing with society, having a spouse, the pleasure of gaining wealth, status, and praise.