You can work on a movie for years, and you won't know until you show it to an audience for the first time if it makes any sense to them at all, if they're touched, if they find it funny, so it's endlessly exciting, because failure is just right there all the time, and your chances of success don't rise that much based on the fact that you succeeded last time.
Of these three words, direction, control, and guidance, the last best conveys the idea of assisting through cooperation the natural capacities of the individuals guided; control conveys rather the notion of an energy brought to bear from without and meeting some resistance from the one controlled; direction is a more neutral term and suggests the fact that the active tendencies of those directed are led in a certain continuous course, instead of dispersing aimlessly.
The flash would prove that proton decay really happens. The flash would mean that the matter of the proton - the solid stuff - had turned into the energy of the flash (E-mc2). Totally. Nothing left behind. No ash. No smoke. No smell. Nada. One moment it's there, the next moment - pffft - gone. What would it mean? Only this: Nothing lasts. Nothing. Because everything that exists is made of protons.
Human consciousness is just about the last surviving mystery. . . a topic that often leaves even the most sophisticated thinkers tongue-tied and confused. And, as with all of the earlier mysteries, there are many who insist - and hope - that there will never be a demystification of consciousness.