One should render transcendental loving service to the Supreme Lord Krsna favorably and without desire for material profit or gain through fruitive activities or philosophical speculation. That is called pure devotional service. Unalloyed devotees have nothing to ask from the Supreme Personality of Godhead, but Gajendra, the King of the elephants, was circumstantially asking for an immediate benediction because he had no other way to be rescued. Sometimes, when there is no alternative, a pure devotee, being fully dependent on the mercy of the Supreme Lord, prays for some benediction. But in such a prayer there is also regret. One who always hears and chants about the transcendental pastimes of the Lord is always situated on a platform on which he has nothing to ask in terms of material benefits. Unless one is a completely pure devotee, one cannot enjoy the transcendental bliss derived from chanting and dancing in the ecstasy of the sankirtana movement. Such ecstasy is not possible for an ordinary devotee. Lord Sri Caitanya Mahaprabhu showed us how one can enjoy transcendental bliss simply by chanting, hearing and dancing in ecstasy. This is bhakti-yoga. Therefore the King of the elephants, Gajendra, said, adhyatmika-yoga-gamyam, indicating that unless one is situated on this transcendental platform, one cannot approach the Supreme Lord. The benediction of being able to approach the Lord can be achieved after many, many births, yet Sri Caitanya Mahaprabhu has awarded this benediction to everyone, even to the fallen souls who have no heritage of anything in spiritual life. That is actually being seen in the Krsna consciousness movement. Therefore the path of bhakti-yoga is the spotless process by which to approach the Supreme Personality of Godhead. Bhaktyaham ekaya grahyah: only through devotional service can one approach the Supreme Lord. The Lord says in Bhagavad-gita (7.1):

Now hear, O son of Prtha [Arjuna], how by practicing yoga in full consciousness of Me, with mind attached to Me, you can know Me in full, free from doubt. Simply by being attached to Krsna consciousness and by thinking of the lotus feet of Krsna constantly, one can fully understand the Supreme Personality of Godhead, without a doubt.