What is the Gearhead's 'power source'? (Pure Steam Campaign Setting)

[Sjark]

Just wondering if anyone has an explanation as to the Gearhead's (http://www.d20pfsrd.com/classes/3rd-party-classes/icosa-entertainment-llc/ gearhead) mysterious 'power source'.

It seems to be a mental thing, based on the description, and it basically seems to be magic (at least from my perspective).

I guess there isn't really a solid answer, but I want to provide some kind of tangible explanation as to what it is without saying 'it's magic' or some other mystical, mental energy.

Thoughts or ideas anyone?
TIA

[The Morphling]

You're gonna want to be over in the Third Party Products forum to get an answer. I've flagged for the post to be moved so you can get a proper reply.