The Forbidden Fountain of Oz food, which occurs most famously in the "forbidden fruit" of the Tree of Knowledge of Good and Evil in the Book of Genesis, but in other contexts too. The idea of water that purges the drinker's memory is also ancient. In Greek mythology it occurs as the river Lethe: the souls of the dead lose their memories of their earthly lives by drinking its water. The same idea can also be found in Eastern and other literatures, as in the "Well of the Waters of Forgetfulness" and other guises. "The 'Drink of Forgetfulness' is found in Greek, Hindu, Norse, and
On the Transmigration of Souls this particular event." According to the composer, "Transmigration means 'the movement from one place to another' or 'the transition from one state of being to another.' But in this case I meant it to imply the movement of the soul from one state to another. And I don’t just mean the transition from living to dead, but also the change that takes place within the souls of those that stay behind, of those who suffer pain and loss and then themselves come away from that experience." The work is scored for an SATB chorus, a children's choir, and an orchestra