In plain words
You are one, and I saw You as two; the sorrow that came of it is past my telling. Let Your grace flow upon me, so that I return to what I was before. Salutation to Nārāyaṇa.
Word for word
When You who are one were seen here as two, the distress that arose, alas, cannot be spoken by me. That I may come back as before, may Your streams of grace be upon me here; salutation to Nārāyaṇa.