She prophesized that Macbeth would never be defeated until Great Birnam Wood comes to his castle. But since Macbeth didn't think it was possible for a wood (a place) to come up to his castle, he didn't worry about it.
The reference to Birnam Wood in Macbeth comes from the witches' prophecy that Macbeth will be safe until Birnam Wood moves to Dunsinane Hill. Later in the play, Malcolm's army camouflages themselves with branches from Birnam Wood to fulfill this prophecy, leading to Macbeth's downfall.
Woods near Macbeth's castle, Dunsinane
The forest outside Macbeth's castle is called Birnam Wood.
In the play "Macbeth" by William Shakespeare, Birnam Wood comes to Dunsinane when Malcolm's army cuts down branches to use as camouflage while advancing on Macbeth's castle. This fulfills the witches' prophecy to Macbeth that he will not be defeated until Birnam Wood comes to Dunsinane.
The name of the wood in Macbeth is Birnam Wood. It plays a significant role in one of the prophecies given to Macbeth, which leads to his downfall.
In the country near Birnam Wood
The army breaks off branches from the trees in Birnam wood and carries the branches with them as they march on Macbeth's castle. Apex
Malcolm orders his soldiers to cut down branches from Birnam Wood to use as camouflage while advancing towards Macbeth's castle, disguising their numbers. This fulfills the prophecy that Macbeth will be defeated when Birnam Wood moves to Dunsinane Hill.
In Shakespeare's play "Macbeth," Birnam Wood comes to Dunsinane in the form of soldiers carrying branches to use as camouflage against Macbeth's forces. This fulfills the witches' prophecy that Macbeth would not be defeated until Birnam Wood moved to Dunsinane.
Nobody, actually. The third apparition, a crowned child holding a tree, says this: Macbeth shall never vanquish'd be until Great Birnam wood to high Dunsinane hill Shall come against him. Later Macbeth, to reassure himself, says this: I will not be afraid of death and bane, Till Birnam forest come to Dunsinane. Later still Macbeth says this when it is reported to him that Birnam Wood appears to be approaching Dunsinane. 'Fear not, till Birnam wood Do come to Dunsinane:' and now a wood Comes toward Dunsinane.
In the play "Macbeth" by William Shakespeare, the prophecy that Macbeth receives from the witches states that he will not be defeated until Birnam Wood moves to Dunsinane Hill. This prophecy is fulfilled when Malcolm's army disguises themselves with branches from Birnam Wood, giving the illusion that the forest is moving towards Macbeth's castle at Dunsinane.
In Macbeth, the line "Till Birnam Wood remove to Dunsinane" refers to the witches' prophecy that Macbeth will only be defeated when Birnam Wood moves to Dunsinane Hill. This prophecy is fulfilled when Malcolm's army disguises themselves with branches from Birnam Wood, giving the appearance that the forest is moving toward Dunsinane and fulfilling the witches' prophecy.
Macbeth is upset when he sees Malcolm's army carrying branches from Birnam Wood because it fulfills the witches' prophecy that he would not be defeated until Birnam Wood moved to Dunsinane. This sight signals to Macbeth that his downfall is imminent, as the prophecy is seemingly coming true.
The messenger thought Birnam Wood was moving because he saw soldiers using tree branches as camouflage to approach Macbeth's castle. This coincided with the witches' prophecy that said Macbeth would be safe until Birnam Wood moved to Dunsinane.