In plain words
Be he one who has gathered up all the śāstras and Purāṇas, a sage whom Vedānta makes known; be he one who, with delight overflowing, in lovely mansions takes his pleasure, a moon among kings; be he one who has routed his foes on the battlefield and shines as the one hero of the world; be he one who languishes at the mercy of the goddess of poverty, a servant, a lord of ill fortune: without Bhakti he is of no use at all. Rather than that lord of the world who lacks Bhakti, the servant given to Bhakti is the one to be revered.
Embodiments of the divine Ātma!
"Hṛṣīkeśa sevanaṃ bhaktir ucyate." Service to God alone is called Bhakti. When one, with a yearning heart, thinks of God without ceasing and remembers Him, the citta melts. It flows towards God in a ceaseless stream and is born as Bhakti. Such a change of the mind is what is called Bhakti. One who has drunk the nectar of Bhakti has no other desire. The state of being steady of mind, not counting pleasure and pain, gain and loss, blame and praise, neither sinking nor swelling, is what is called Bhakti. In man the natural qualities of affection and Prema come down as an inheritance. Only when these qualities are turned towards God and set always to sacred work are they made holy.