It is important to be free from clinging to the true existence of things.  Otherwise, the mind will make distinctions -between good experiences and bad ones, such as afflictive emotions and suffering.  You should reach the state in which the mind is unconcerned by good and bad thoughts, like someone who has caught a disease and, having now recovered from it, is no longer concerned about that disease ~  Kyabje Dilgo Khyentse Rinpoche