Bhakti Yoga is concentration on the Deity through Devotion, the best and highest form of Yoga, higher than all the other forms, as Krishna Himself has said in the Bhagavat Gita Devotion is the full fruition of spiritual concentration. A true devotee is the highest Yogi, for he is filled with humility, and sincere, abject humility is the expression of the sublimest spiritual nature; it is "the softened shadow" as the Lord says, "that is cast by My Love." Sincere humility springs from the clear realization of the Presence of God in everything, that the whole universe is formed of the many forms of the One Form and its Radiance. And with that never fading vision before the mind's eye, the devote forgets himself and stoops low at the feet of every one and at everything he sees, for he sees in them all his Deity. Bhakti is of two kinds, Gnān-Bhakti and Prem-Bhakti. Gnān-Bhakti is devotion aided by culture of wisdom, its Deity is some incarnation of Vishnoo and its goal is the Abode of Vishnoo or the Essence of Vishnoo. Prem Bhakti is devotion through Love—Causeless, Disinterested Love, love for love's sake, and its Deity and Goal is Krishna—Absolute Love. The Path of Prem Bhakti lies within the Path of Gnān Bhakti, but this Path within the Path is hedged in high to shut out the view and sound of the main path. The devotee of Prem Bhakti dedicates all his knowledge, wisdom and actions to Krishna, the spring of all Wisdom and Actions, and prays Krishna for His love, the luxury of loving Him for His dear sake. The Prem Bhakta wants nothing from his Lord, no boon, no blessing, material or celestial, not even Salvation or Mukti, nothing, nothing, save—the blessing of being filled with love for Him. He prays to his Lord: "O my Krishna! It matters not what betides my body, my life or my earthly circumstances, or in what form of life I am reborn, even if it be that of a worm, let my faith and love be fixed in Thee, my Beloved. Whatever is there in all existence compared with the luxury of loving Thee? Thou art the sum-total of the realization of all desires, of all happiness, Thou, the Secret and Object of all our longings!"