The thing being power by zeal pods in and of itself is what I was referring to. How can it’s power output last forever if it’s running off a finite source of power (also I’m actually going now, I just noticed your last comment can be quickly responded to and better to respond to earlier rather than later).
Well this is because magic it's self is a limitless form of natural energy,
The practical application of magic theory is called a
spell, of which there are 666 known ones. A spell is derived from formulas that draw energy from another plane—the Backyard—and convert it into more useful and familiar forms, which some consider similar to alchemy. [GGWorld - "Spell"]
Creating magic is a highly involved process: the
writer (or programmer), who must have a state-mandated license to hold such a position, writes the necessary programmatic language to cause magic to occur, and logs it in a
score, also called note or program, in the appropriate format. Primary recording mediums include zeal or paper, and based on what the score says (e.g. "cause fire" or "fly"), the person activating the spell is able to cause a desired effect.
Finally, a
sequencer is a catalyst required to play the score. Depending on the sequencer type or score, the final effect will vary greatly. The sequencer can be:
A
hardware sequencer (instroment), which is a physical device that will load a score and play it back, but it cannot alter the score's contents. "Pods" are a combination of a score and sequencer to be used in common households; they are designed for a specific purpose—e.g. lighting or as an engine—, and cannot perform complex tasks. A physical sequencer of better quality, like the Sacred Treasures, is likely to have a wider range of applications, and even enable to adjust output as desired. [GG world - "components of magic production"]
This is how the music theory as magic theory works and how zeal pods can help produce this type of energy in the first place.