It holds the Divine spark or spirit and is the place of gnosis and deep spiritual knowledge. In Sufism, the goal is to develop a heart that is sincere, loving and compassionate, and to develop the heart's intelligence, which is deeper, and more grounded than the rational, abstract intelligence of the mind. Just as the physical heart supplies blood to the body, the spiritual heart nourishes the soul with wisdom and spiritual light, and it also purifies the gross personality traits.