What second thoughts does Juliet have in the passage below? What literary devices are used in her comments?
"I have no joy of his contract to-night. It is too rash, too unadvised, too sudden; too like lightning, which doth cease to be Ere one can say 'it lightens.' Sweet, good night! This bud of love, by summer's ripening breath, may prove a beauteous flower when next we met."