>:B

The weird sisters prophecies are very powerful when it comes to influencing Macbeth and his next actions. I believe the events would have not happen if the witches would have not told Macbeth his future. Macbeth might have thought about becoming once before, naturally, people want to be on the top, but to actually find out that a dream was capable of actually becoming a reality created ambition within him to try and get the position he wanted.