Via 12 of 22 Daily Dharma: Right Concentration

Concentration is “right” when it demonstrates the feasibility of training the mind, when it supports the investigation of impermanence, when it erodes selfish preoccupation, and when it reveals the benefits of surrender. It is not “right” when it is seen as an end in itself and when it is used to avoid painful truths.

—Mark Epstein, “Meditation’s Secret Ingredient”