This is when Lady Macbeth's reads her husband, Macbeth's, letter. A quote: "While I stood rapt in the wonder of it, came missives from the king, who all-hailed me, Thane of Cawdor, by which title, before, these weird sisters saluted me and referred me to the coming on of time with: 'Hail, king that shall be!' This have I thought good to deliver thee, my dearest partner the greatness that thou mightst not be ignorant of what greatness is promised thee. Lay it to thy heart, and farewell."