Enough - to be balanced we need "enough" of all things.
What is “enough” is unique to each person, but “not enough” or a lack of some aspects of us; e.g. thoughts, feelings, emotions, is not a sign of inner health
we need enough joy and sadness
enough hardship and ease
enough love and discipline
enough success and failure
enough pain and pleasure
Therapy is the rebalancing of all these "enoughs", as imbalance is often a cause of depression anxiety and other mental ill health.