Translation:

(The river) Ravi bemoans separation (from its beloved, i.e., the ocean); At the same time, it also hints at (future) re-union (with its source).

(Says Ravi): I have become more and more forlorn, through separation from my origin;

Now I am rushing headlong for my re-union (with my source).

I came from the ocean, and am now heading back towards it, in search for the time when I was united with it.

The narrator, the narrated and the source of the narration;

(These) are all together here just as separation and union are.

The concept of the shadow of His knowledge, and of His Being, is known only to him who keeps his eyes of observation wide open (for this purpose).