To me, it combines the best of what the mystical factor of imagination has to offer with the practical pragmatism of engineering. Vegetable spirit homes or space shuttle cabins all come under the auspices of imagineering. Some say imagination is divine inspiration flowing into the human mind as ideas not previously conceived nor expected. It has been demonstrated under scientific circumstances that learning done through imagined visualization is as effective and sometimes more so than physical hands-on experience. During the recent World's Series, there was an ad on the tv that said, in effect, that you can't depend on your eyes when your imagination is out of focus.
Physical eyes perceive through the filters of one's empirical experience.
Imagination knows no such limiting horizons. Imagination can take you where you have never gone before. Indeed, it is your only vehicle for such uncharted travel. Sharpen up your imagining, your imagineering, your visions, your dreams. Bring them into focus.