Best means of realisation is the enquiry “Who am I?’
Talk 557.
A visitor asked: “We are advised to concentrate on the spot in the forehead between the eyebrows. Is it right?”
M.: Everyone is aware, ‘I am’. Leaving aside that awareness one goes about in search of God. What is the use of fixing one’s attention between the eyebrows? It is mere folly to say that God is between the eyebrows. The aim of such advice is to help the mind to concentrate. It is one of the forcible methods to check the mind and prevent its dissipation. It is forcibly directed into one channel. It is a help to concentration.
But the best means of realisation is the enquiry “Who am I?” The present trouble is to the mind and it must be removed by the mind only.
Ramana Maharshi in Talks.