One should concentrate his mind upon the Supreme Personality of Godhead, who alone distributes Himself in so many manifestations just as ordinary persons create thousands of manifestations in dreams. One must concentrate the mind on Him, the only all-blissful Absolute Truth. Otherwise one will be misled and will cause his own degradation. In this verse, the process of devotional service is indicated by the great Gosvāmī, Śrīla Śukadeva. He tries to impress upon us that instead of diverting our attention to several branches of self-realization, we should concentrate upon the Supreme Personality of Godhead as the supreme object of realization, worship and devotion. Self-realization is, as it were, offering a fight for eternal life against the material struggle for existence, and therefore by the illusory grace of the external energy, the yogī or the devotee is faced with many allurements which can entangle a great fighter again in the bondage of material existence. A yogī can attain miraculous successes in material achievements, such as aṇimā and laghimā, by which one can become more minute than the minutest or lighter than the lightest, or in the ordinary sense, one may achieve material benedictions in the shape of wealth and women. But one is warned against such allurements because entanglement again in such illusory pleasure means degradation of the self and further imprisonment in the material world. By this warning, one should follow one’s vigilant intelligence only.
Ref >> Srila Prabhupada Vani.