The other terror that scares us from self-trust is our consistency; a reverence for our past act or word, because the eyes of others have no other data for computing our orbit than our past acts, and we are loath to disappoint them.
I guess I'm just confused as to what this short passage means in terms of the theme of self-reliance, like how the words "reverence" and "loath" are used within this passage, and how it connects to the "terror" of our personal identities.