Read these lines from the poem: It is the star to every wandering bark, Whose worth's unknown, although his height be taken. Which aspect of love do these lines emphasize?

These lines emphasize the guiding force that love can be.

The piece of the poem is describing love as a start that is guiding a ship. The ship might not know its worth or destination, but because of that star it now knows where it's going. Love can work the same way for people, it can show them their worth and guide them.