See who is the doubter, who is the thinker. It is the ego. Hold it; the other thoughts will die away - the ego will be left pure. See the source from where the ego arises and abide in it. That is pure consciousness.
Ramana MaharshiThe degree of freedom from unwanted thoughts and the degree of concentration on a single thought are the measures to gauge spiritual progress.
Ramana MaharshiThere is nothing new to gain. On the other hand a man must lose his ignorance. That is all.
Ramana Maharshi