Something like a minute later i was climbing the pilot-house steps with some of my clothes on and the rest in my arms. the imagery suggests that twain is? surprised to be starting work so early. generally disorganized and unkempt. often guilty of acting without forethought. completely disoriented and confused.

This imagery suggests that Twain is  

Completely disoriented and confused

This phrase is taken from “A cub pilot Experience” in Mississippi writings. The character is confused and disoriented on this new experience as pilot. He was experimenting something new and unknown.

“…I began to fear that piloting was not quite romantic as I had imagine it was, there was something very real and work-like about this new phase of it…”

Based on edg.enuity he is surprised to be starting work