It is not enough if one is merely silent and sits quiet without doing anything. It is essential also to maintain a steady consciousness in that silent condition of the mind. Mere informative understanding also is not of any significance here. What is essential is experience by an actual living in it, and this cannot be possible unless one lives a dedicated life under an able preceptor and studies the scriptures with faith and devotion. Else, it would be like a person who said that he knew that the Vedas are four, and demanded the present promised to one who knew the four Vedas.
Intellectual information is bare featureless description.
It does not enter into one's life and cannot affect one's position. Until actual realisation is attained, it is necessary to serve a preceptor who is established in true wisdom. When there is the feeling of the possession of a desired object, there is also a temporary cessation of that desire, and the quality of Rajas in the mind which propelled the desire outwardly comes to a cessation. The Rajas having ceased for the time being, there is a quick introversion of the mind and a revelation of the stability of Sattva brought about as a consequence, which occasions a sudden reflection of the Bliss of the Atman within, which makes one happy at the time. Sensual happiness, therefore, is not something imported from the object outside, but really belongs to the Atman within, though, on account of ignorance, the Jiva does not know that this is the fact.