"I find my zenith doth depend upon
A most auspicious star."
I am not sufficiently versed in astrology to determine whether 'zenith' be right or not.
"Yea, his dread trident shake.—That's my brave spirit!"
Like the subsequent "Why, that's my spirit!" and "That's my noble master!" So also Hanmer.
"Some trick of desperation. All but the mariners."