What does this paragraph about romeo and juliet mean?

n its first address to the audience, the Chorus states that Romeo and Juliet are “star-crossed”—that is to say that fate (a power often vested in the movements of the stars) controls them (Prologue.6). This sense of fate permeates the play, and not just for the audience. The characters also are quite aware of it: Romeo and Juliet constantly see omens. When Romeo believes that Juliet is dead, he cries out, “Then I defy you, stars,” completing the idea that the love between Romeo and Juliet is in opposition to the decrees of destiny (5.1.24). Of course, Romeo’s defiance itself plays into the hands of fate, and his determination to spend eternity with Juliet results in their deaths. The mechanism of fate works in all of the events surrounding the lovers: the feud between their families (it is worth noting that this hatred is never explained; rather, the reader must accept it as an undeniable aspect of the world of the play); the horrible series of accidents that ruin Friar Lawrence’s seemingly well-intentioned plans at the end of the play; and the tragic timing of Romeo’s suicide and Juliet’s awakening. These events are not mere coincidences, but rather manifestations of fate that help bring about the unavoidable outcome of the young lovers’ deaths.