Yoga Sūtra Chapter Three verse 34

hṛdaye citta-saṃvit ||34||

On the heart, an understanding of the psyche.

hṛdaya - heart or region of the heart as the seat of feelings and sensations; mind as the seat of mental operations; the heart or centre or core or essence or best or dearest or most secret part of anythingcitta - psyche; mind; heartsaṃvid - an understanding

Commentaries and Reflections

Paul Harvey:

“From meditating on the Heart,
we come to know the habits of the Mind.
From coming to know the habits of the Mind,
we come to know the Intrinsic Nature of the Mind.”