It would be vain to enumerate the various definitions of this term, or to attempt to give even an abstract of the diversity of views entertained by philosophers respecting the nature and extent of its operations. It is regarded by some writers as that power or faculty of the mind by which it conceives and forms ideas of things communicated to it by the organs of sense. So defines our encyclopaedias. Bacon defined it to be the 'representation of an individual thought.' But Dugald Stewart more philosophically defines it as the 'power of modifying our conceptions, by combining the parts of different ones so as to form new wholes of our own creation.' The Edinburgh Encyclopaedia, not satisfied with this, says Webster defines it to be the _will working on the materials of memory, selecting parts of different conceptions, or objects of memory, to form some new whole_. This has long been our cherished view of Imagination. It creates only as a mechanic creates a chest of drawers, a sideboard, a clock, or a watch. It originates not a single material of thought, volition, or action. But, mechanic-like, it works by plumb and rule on all the materials found in the warehouse of memory; and manufactures, out of the same plank of pine, or bar of iron, or wedge of gold, or precious stone, some new utensil, ornament, or adornment never found in Nature. In its present form it is the offspring of the art and contrivance of man. Hence our invulnerable position against Atheism or Deism. _No one could have created the idea of a God or of a Christ, without a special inspiration, any more than he could create a gold watch without the metal called gold._ The deaf are necessarily dumb. The blind cannot conceive of color. A Poet cannot work without language, any more than the nightingale could sing without air. Language and prototypes precede and necessarily antedate writing and prose. Hence the idea of Poetry is preceded by the idea of Prose, as speaking by the idea of hearing. There was reason, and an age of reason, without, and antecedent to, rhyme; and therefore we sometimes find rhyme without reason, as well as reason without rhyme. Rhyme, however, facilitates memory and recollection. Memory, indeed, is but a printed tablet, and recollection the art and mystery of reading it. Poetry, therefore, is both useful and pleasing. It aids recollection, and soothes and excites and animates the soul of man. It makes deeper, more pungent, more stimulating, more exciting, and more enduring impressions on the mind than prose; and, therefore, greatly facilitates both the acquisition and retention of ideas and impressions. Of it Horace says ('Ars Poetica'): 'Ut pictura, poesis; erit, quae, si propius stes, Te capiet magis, et quaedam, si longius abstes. Haec amat obscurum; volet haec sub luce videri, Judicis argutum quae non formidat acumen: Haec placuit semel, haec decies repetita placebit.'