The deeply learned ones know the mind as the directly expressed meaning of the supreme knowledge. The heart is the meaning aimed at. The Supreme is none other than the heart.
Ramana MaharshiThe pure mind is itself Brahman; it therefore follows that Brahman is not other than the mind of the sage.
Ramana MaharshiEven the structure of the atom has been found by the mind. Therefore the mind is subtler than the atom. That which is behind the mind, namely the individual soul, is subtler than the mind.
Ramana Maharshi