The sea is the obsession of the poet, because the first poetic rhythm, or the first sense of poetic rhythm, was born of the motion of the waves.
Source, in full
In this quotation Darwish "reveals that he learned to write by imitating the rhythm of the sea’s waves." -Mahmoud Darwish: Writing as an Artistic Sanctuary, Sazzad, R. (2015), Interdisciplinary Literary Studies 17(1), 1-18. muse.jhu.edu.