In plain words
This very principle of sacred Prema the Bhāgavata proclaimed to the world of that day, solely so that the treasure of the Paramātma's presence might be experienced. Prema flows as selfless Prema. It trusts, ‘Other than God there is nothing else I need.’ It holds that the divine principle present everywhere is one. It cherishes the truth Eko'haṃ bahu syām. All objects too are nothing but God's decrees. All names and forms are God's manifestations. But because man takes these as separate and divides them, he falls into suffering; the cause of this is egoism alone.
Where there is ego, God is not seen. If the ego dies, the Paramātma comes; this ego merging in the Ātma, that itself is liberation. That is, out of the Ātma the ego arises. Thought begins in the ego. From this thought speech comes out; all these have come forth from the Ātma. The Ātma has no connection whatever with the ego; as long as … remains, the Ātma is not seen. The Ātma can be without the ego, but the ego cannot exist without the Ātma. Only when the ego is uprooted is the principle of the Ātma understood. The ego is nothing but a delusion. It is this delusion that binds man.
This whole world came forth from the Ātma alone. It lives in the Ātma itself. It dissolves in the Ātma itself. In the Brahma Sūtras there is the sūtra tajjalān. Tat means from That; ja means being born. La means dissolving. An means nourishing. So tajjalān means that it is born from That, grows from That, grows from That and dissolves in That. So man too is born in Brahman, grows in Brahman and dissolves in Brahman. In this way, to find the paths called karma, upāsana and Jñāna in order to proclaim oneness to the world, and to set about making known to the world the secret of God's creation: that is the very aim of spirituality.
To determine oneness out of the many, to behold the principle of the Ātma within this oneness and to experience Ānanda: that is man's chief duty. Singing bhajans is not by itself Bhakti. Dhyāna, bhajans, yoga, tapas: all these are limbs of Bhakti, but they are not the principal Bhakti. Bhakti is that which seeks no second thing. Bhakti is living as one's very self. Though things appear as many, there is one root that is the basis of them all. When a seed is planted, it comes up as a sapling and later grows into a big tree. On that very tree many branches, twigs, leaves and flowers form.