Ideas are not toys. They have the power to put things into motion and affect reality.

As Genesis, the Prologue of John, and Aristotelian-Thomistic metaphysics tell us, the Word, the idea, the immaterial, is first conceived and only thereafter becomes material reality. This is the order of creation.

A carpenter dreams up a design for an elaborate chair before he carves the blocks of wood to make it so. J. K. Rowling conceived Harry and Hogwarts in her mind and consciousness long before a young Daniel Radcliffe was transformed into a scarred adolescent protagonist or the familiar settings were made into tourist attractions and figurines.