The All Souls' Forget-me-not is the book for all those devoted to the souls in Purgatory. "Why," the author asks, "does this little prayer-book take its name from the simple flower, the Forget-me-not? Why do they remind one of those poor, forgotten and often neglected souls? The forget-me-not grows in marshy places, by the banks of rivers and streams. And is not Purgatory a dismal swamp wherein the tears of sorrow and desire are ever flowing? Who can count the myriads of souls lingering and suffering in Purgatory, since nothing with the smallest spot of impurity can enter heaven?