This section contains the famous "crisis" in which Whitman seems to be under attack from himself. Some critics think this section is about masturbation.
At any rate, he feels that the power of "touch" has gotten way out of hand (no pun intended).
This passage is filled with sexually suggestive phrases like "treacherous tip of me," "stiffening my limbs," "red marauder," and "I went myself first to the headland . . . my own hands carried me there."
He feels suffocated by his sense of touch, which overpowers him and creates an enormous release of energy.
Let's face it: it's hard not to read the end of this section as a veiled reference to orgasm and ejaculation.