'the inseparableness of two together'

(Hark close, and still, what I now whisper to you,
I love you, O you entirely possess me,
O that you and I escape from the rest and go utterly off, free and
     lawless,
Two hawks in the air, two fishes swimming in the sea not more
     lawless than we;)
The furious storm through me careering, I passionately trembling,
The oath of the inseparableness of two together, of the woman
     that loves me, and whom I love more than my life, that oath
     swearing,
(O I willingly stake all for you,
O let me be lost if it must be so!
O you and I! what is it to us what the rest do or think?
What is all else to us? only that we enjoy each other and exhaust
     each other if it must be so;)

—Walt Whitman, "From Pent-up Aching Rivers," lines 27-36 (1860/81)