In plain words
Instead of constantly thinking of the world, if we keep thinking of God at least to some extent, this mind gradually reaches a higher level. If you do sacred nāmasmaraṇa all through this night, your mind too, even if it does not become the lofty Super mind, even if it does not become Higher mind, will be able to reach at least the level of a sacred mind. It will reach a level a little better than the one it is at. Contemplating the principle ‘Satyaṃ jñānam anantaṃ brahmā’ constantly in the mind and doing japa on it, strive to cross over.