Meditation applies the brakes to the mind.

Apart from thoughts, there is no independent entity called the world. In deep sleep there are no thoughts, and there is no world. In the states of waking and dream, there are thoughts, and there is a world also. Just as the spider emits the thread (of the web) out of itself and again withdraws it into itself, likewise the mind projects the world out of itself and again resolves it into itself.

The world is illusory, Only Brahman is real, Brahman is the world

Because truth is exceedingly subtle and serene, the bliss of the Self can manifest only in a mind rendered subtle and steady by assiduous meditation.

Call it by any name, God, Self, the Heart, or the Seat of Consciousness, it is all the same.

By whatever path you go, you will have to lose yourself in the one. Surrender is complete only when you reach the stage `Thou art all' and `Thy will be done'.

Sense-perceptions can only be indirect knowledge, and not direct knowledge. Only one's own awareness is direct knowledge.