Read it through once

MACBETH. That will never be: Who can impress the forest; bid the tree Unfix his earth-bound root? Sweet bodements, good! Rebellious head, rise never till the wood Of Birnam rise, and our high-plac’d Macbeth Shall live the lease of nature, pay his breath To time and mortal custom.—Yet my heart Throbs to know one thing: tell me, if your art Can tell so much, shall Banquo’s issue ever Reign in this kingdom?