In plain words
The Name alone is everlasting. So, keeping the Name in mind, we must reach the heart, see God face to face and merge in God. That is the goal we have to reach. The Gaṅgā, the Yamunā and the Sarasvatī flow in their grandeur. But in the end they join the sea. When earthquakes come, some thousands of houses fall. When rivers flood, many villages are swept away. Along with the villages, lives too are lost. So these forms are not everlasting. They decline; they perish. But the Gaṅgā and the Yamunā that have no form are within us. They are the right and the left breath. ‘So'ham, so'ham....’ Where these two meet is the suṣumnā nāḍī. From this suṣumnā nāḍī we must reach the heart.
God is not seen by the outward eye
You know it: when they go to a temple, everyone closes their eyes and bows. You went to the temple to see God, did you not! Then why, once you are there, do you close your eyes? The inner meaning of it is that God is not seen by the outward eye. Saying ‘Rāma, Rāma, Rāma’ within, you stand before the image of Rāma, close your eyes and pray. You go to Tirupati, saying, ‘Veṅkaṭeśvara, Veṅkaṭeśvara.’ You pay an offering to go in and see God. And even after paying it, you close your eyes and bow. That is to say, if you want God's grace, you must develop the inner eye. And that is not all: all the senses of this body God has given must be made holy. “Do you know why you were given eyes? To look at everything? No, no. To behold with your own eyes the Lord who dwells on Kailāsa! Do you know why you were given a tongue? To talk of the gossip of the town? No, no. To sing God's Name in praise! Do you know why you were given feet? To roam through every land? No, no. To walk around the temple of God!