A man does not have to go and find where his eyes are in order to see. The heart is there, always open to you, if you care to enter it, always supporting your movements, although you may be unaware of it. It is perhaps more correct to say that the Self is the Heart. Really the Self is the centre and is everywhere aware of itself as the Heart or Self-awareness.
Ramana MaharshiConcentration is not thinking of one thing. On the contrary, it is excluding all thoughts, since all thoughts obstruct the sense of one's true being. All efforts are to be directed simply to removing the veil of ignorance. Concentrating the mind solely on the Self will lead to happiness or bliss. Drawing in the thoughts, restraining them and preventing them from straying outwards is called detachment (vairagya). Fixing them in the Self is spiritual practice (sadhana). Concentrating on the heart is the same as concentrating on the Self. Heart is another name for Self.
Ramana MaharshiSee who is the subject; and this inquiry leads you to pure Consciousness beyond the subject.
Ramana MaharshiThere is no reaching the Self. If Self were to be reached, it would mean that the Self is not here and now but that it is yet to be obtained. What is got afresh will also be lost. So it will be impermanent. What is not permanent is not worth striving for. So I say the Self is not reached. You are the Self; you are already That.
Ramana Maharshi