"Then I speak to her in a language she has never heard, I spe..." — Pablo Neruda quote meaning

Then I speak to her in a language she has never heard, I speak to her in Spanish, in the tongue of the long, crepuscular verses of Díaz Casanueva; in that language in which Joaquín Edwards preaches nationalism. My discourse is profound; I speak with eloquence and seduction; my words, more than from me, issue from the warm nights, from the many solitary nights on the Red Sea, and when the tiny dancer puts her arm around my neck, I understand that she understands. Magnificent language!