It is not by thinking and reading that consciousness comes. There are many who read and think a great deal but are not conscious, have not the witness developed in them. There are others who work all day like X, yet are very strongly conscious. When one has the power of stopping thinking altogether and only looking, then the Witness becomes very strong and conscious. This consciousness can come by practice, but it can also come by turning to the Mother and thinking of her always and offering to her everything. The being opens, the Mother’s force begins to work and one becomes more and more conscious.
Ref: Letters on Yoga Vol. III