The problem with elation is depression. What goes up, must come down. . . . Elation and depression are inseparable aspects of the same phenomenon, the erratic swinging of the mind: up with what it likes, down with what it doesn't like. . . .
Go beyond the conditioned cycles of elation and depression to live in an abiding sense of joy.
— Eknath Easwaran, The Bhagavad Gita for Daily Living, Volume 2