Consciousness may be likened to a tractor (truck) pulling the freighted trailer of the body. Each trip which has progress as its desired destination will have a much happier and more uplifting ending if the driver (individual thought) keeps his eyes fixed undeviatingly on the road ahead (God and His spiritual and perfect creation), not on the trailer in the rear-view mirror. The trailer will always follow the leading of the tractor, so it does not need to be sedulously, and foolishly, watched, agonizingly tempting as furtive perusals might be. Just as the watched pot never comes to a boil, so the scrutinized body with its afflictions will not be improved. If one is dissatisfied with an inept ventriloquist, he doesn't correct this shortcoming by replacing or manipulating in some way the dummy.
As if driving forward while looking backward isn't risky enough, attempting to drive the truck from the trailer (i.e., using the material body as one's starting point and basis of thought), is even more foolhardy. One may think in his sweet innocency that no one could be that muzzy, but it can be confidently asserted that it has, alas, been tried. Not, of course, successfully tried--just tried. As Mrs. Eddy lovingly tells us, suffering or Science (and probably some of both) will get one back in the cab where he belongs and with God at the steering wheel of thought. "The sharp experiences of belief in the supposititious life of matter, as well as our disappointments and ceaseless woes, turn us like tired children to the arms of divine Love." (S&H 322: 26-29) It is thus that the tractor, and hence the trailer, will be directed to where they need to be and where, in fact, they have always been in their eternal spiritual perfection.
Note: The title, "What fools these mortals be", is from Seneca. Shakespeare's use of the expression in "A Midsummer-Night's Dream" is much better known.