Like a staircase, yoga has different steps for reaching the topmost floor, and according to one’s position upon the staircase, he is understood to be situated in karma-yoga, jñāna-yoga, dhyāna-yoga or bhakti-yoga. Of course, bhakti-yoga is the topmost step on the staircase of realization of the Supreme Personality of Godhead. In other words, according to one’s development in consciousness, one realizes his spiritual identity, and thus when one’s existential position is purified fully, he becomes situated in brahmānanda, which is ultimately unlimited. Therefore the saṅkīrtana movement contributed by the Supreme Personality of Godhead as Lord Caitanya is the direct and easiest process for coming to the purest form of consciousness — Kṛṣṇa consciousness, the platform on which the Supreme Personality is fully realized.