Final answer:
Twain delights in his changed perspective regarding the Mississippi River as he becomes a skilled steersman and takes pride in his ability to navigate the river.
Step-by-step explanation:
In Mark Twain's memoir Life on the Mississippi, he reflects on his changed perspective regarding the Mississippi River. Twain delights in his changed perspective, as he has become a skilled steersman and takes pride in his ability to navigate the river without help or instruction. He no longer fears any crossing and feels confident in his abilities as a riverboat pilot.