Answer:
1- The phrase is told by Romeo, one of the main characters of Romeo and Juliet. He pronounces this phrase to his wife Julieta, referring to the family conflicts that existed between their families. Thus, when he saw the sun rise, he mentions that every day that he passes he aggravates his problems. In this way, the sunlight and the progressive passage of time mark that their situation is increasingly dark.
2- The context of the phrase occurs after the wedding of the protagonists, when Juliet's cousin challenges Romeo to a duel, in which Romeo's best friend, Mercutio, and Juliet's own cousin, Tybalt, die. This situation aggravated the enmity between the families of both lovers, with which the phrase is an allegory to said situation of growing enmity.
3- In this phrase, Shakespeare is using an allegory, which is the depiction of an abstract concept as someone or something specific, as the personification or comparison of an abstract situation with the laws of nature.
