[SSJKarma]

well, i can easily answer that !

you can't see your energy, its like the wind, you know its there but you can't see it !

seeing it would require a whole lot of energy which the human body can surely not generate all of a sudden.
at least that's my guess.

also, i read somewhere on the net someone talking about KI and the like that are used in TELEKINETICS (art of moving objects)

i read that the guy could use his energy to move objects around, believe me or not, but i did see a friend of mine do that kind of stuff, wasn't the biuggest thing in th ewordl but still he could do it which i couldn't !

anyway... the guy said that sometimes, in some cases that he saw when teaching it to others. many of his disciples (not many but still about 6 to 10) actually used there energy but the only thing it did was accumulating STATIC ELECTRICITY !

so i guess energy can actually do anything, but FIREBALL ?
i guess our energy is not strong enough to create anything !
ENERGY is generated by our body, but like electricity generated by a bridges... we cannot create, just modify it !

i guess its a no no for a fireball since we cannot create fire ! which we can't control either !