In plain words
There must be a complete offering to God. Only when this offering is made do he and God become one.
Sat is one; the wise speak of it in many ways.
Dividing this very oneness into manyness, scholars utter it by various names. If we are to become one with God, what kind of sādhanas should we practise? There is coal right close by us. There is fire. But when the fire is in one place and the coal in another, the fire does not enter the coal. Only when we keep the coal near the fire and a little breeze blows does this coal too turn into fire. This is what was said: ‘The knower of Brahman becomes Brahman itself.’ The nearness by which it attains that near form is itself true oneness. The food we eat is digested inside and carries that form all through the body. Then this food we have eaten and our body, the two, become one. In the same way, we must be offered up to God. All the resolves of our life must change into God's resolves. Through the feeling of God these resolves become sacred, eternal and true. If we are to attain such oneness, we must unite our humanness with this divinity. God is Nārāyaṇa. The jīva is nara. By the oneness of these two it takes the form of Nara-Nārāyaṇa. Nara means the Ātma principle itself. It is the very form of the Ātma. So nara does not mean that a man is a man simply because he has taken a human shape. Only the shape is human; but he is the very form of the Ātma. In the body the Ātma itself moves about, from the nails to the tip of the hair. Whatever work you do, whatever resolves you make, whatever word you speak, whatever task you enter, all of it takes shape as the Ātma principle itself. So it is not enough for us merely to think of God. We must be offered up to God. That is just why: An eternal portion of Me Myself has become the jīva in the world of the living. Man is the portion; God is the original. The oneness of the original and its reflection is itself the form of sādhana. Merely worshipping the Pādukās, merely remembering the Name, merely contemplating the form, is not enough.