Ghost pokémon are always fun to write about because of their esoteric nature. Most of their entries aren’t supposed to make sense, they’re very paranormal and very unscientific. Still, we learned from Chandelure that its family’s flame has some very interesting properties. Let’s find out some more.
When Litwick’s fire shines, it absorbs the “life energy” of people and pokémon, using it to fuel its fire. I’m going to interpret “life energy” as the same “spirit” that Chandelure burns.
Right away though, we run into some weird stuff. The only thing fire “absorbs” is fuel. Light doesn’t absorb anything, it only emits. Light is, however, particularly good at carrying energy.
The spirit in question is likely somehow connected to our bodies. Maybe it orbits our atoms like electrons do, maybe it is attracted to us almost gravitationally, or maybe it’s just stuck on with supernatural glue. In any case, energy can break any of those bonds. If you give an electron enough energy it can leave its nucleus, if you chuck an object fast enough it can escape a gravitational or electric field, and if you pull hard enough you can unstick even supernatural glue.
Litiwick’s light is probably just normal, high energy photons. Its flame is blue, which tells us that it has higher energy right away, because blue light has a higher frequency than red light. In any case, Litwick’s light supplies our “life energy” with enough energy to break the bond connecting it to our bodies.
This “life energy” also might be attracted to others like it, such that all of our spirit can stay together at any one time. We already know that Litwick uses the spirit as fuel to its flame, so it probably has a lot of it stored in its wax. The freed life energy from Litwick’s light would be attracted to Litwick’s waxy, life-energy-dense base, and be pulled away from our bodies and into the candle.
Litwick’s light gives our spirit enough energy to disconnect from our bodies. The freed particles of spirit are then attracted to Litwick’s base, where it can accumulate more and more life energy to burn.
Of course, this has got to be some weird kind of energy. Like kinetic, potential, electric, and dark energy are all different, this is could possibly be just one more type that we don’t understand.