This is where the witches manipulate Macbeth and others into doing certain things to cause chaos
The predictions given to Macbeth by the Three Apparitions give him a false sense of security and make him feel invincible.
The predictions (of moving trees, someone not born of a woman) seem crazy, causing Macbeth to feel as if he doesn’t ever need to prepare for battle.
Banquo does warn Macbeth, however Macbeth continues to fully trust the witches
The ambiguous prophecies must be interpreted as riddles, since they do not always mean what they seem to mean