I fear too early, for my mind misgivesSome consequence yet hanging in the starsShall bitterly begin his fearful dateWith this night’s revels, and expire the termOf a despisèd life closed in my breastBy some vile forfeit of untimely death.
These lines foreshadow Romeo's meeting and marriage to Juliet. They also foreshadow the fact that whatever is put into motion will be the cause of his death.