What does the metaphor of the "bending sickle's compass" in line 10 represent? 1.the limits of time 2.the limits of space 3.the possibility of unfaithfulness in human love 4.the blindness of love

Referring to sonnet 116, I believe the answer is 1. .the limits of time 
Through that metaphor, i William shakesphere shares his view on how he sees love. He believed that loves is not something that could be measured by countable time measurement because it's something that internal and exceeds the limit of time.