Simplify the following text for a Grade 10 native English-speaking person.
Original: Isolde appears to wake at this and in a final aria describing her vision of Tristan risen again ( the â Liebestodâ , `` love death '' ) , dies ( `` Mild und leise wie er lÃ chelt '' ) .
Simplified: Isolde seems to wake but , in a last aria describing her vision of Tristan risen again ( the â Liebestodâ ) , dies of grief .