He’s trying to say ‘I will let god take me the way he think would good for me’ that god is the sailer and Romeo is the ship. As he say to him self: But He, that hath the steerage of my course, Direct my sail! On, lusty gentlemen. He is trying to say to himself that I won’t do the things I want to do I shall let god tell me what i should if it is right or wrong and lead to the of greatness.