The stage of equanimity is essential for spiritual progress. It can be gained only when the Buddhi (intellect) is cleansed of the blot of deluding attachments and involvements. Without that serenity, the intellect cannot proceed on the trail of Brahman (God). In fact, the term ‘virtue’ is only another name for the ‘intelligence’ that follows the promptings of the Atma, the Self that is your Reality. Only one who has such virtue can win awareness of Atma. And, once awareness is gained, you will no longer be caught in delusion or desire.

- Sutra Vahini, Chap 1, "The Primacy of Moral Character".

Steady perseverance alone tames the mind. - Baba