Serenity

In Hellenistic philosophy, the state of imperturbable serenity or ataraxia was seen as a desirable state of mind by Pyrrhonian, Epicurean, and Stoic philosophers.
In the Eastern Orthodox Church, an analogous dispute might be located in Hesychasm in which "the supreme aim of life on earth is the contemplation of the uncreated light whereby man is intimately united with God".