The power source or the "mana" is ZIFYL {yes I will continue using ZIFYL in all caps} name source is random. Recommended names in the next -
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The source comes from any type of energy an example is heat it increases the density of ZIFYL. If not absorbed properly some minor problems will occur.
ZIFYL has many ways of being stored in the body but the most popular in the modern era is the Brain and the heart being second in popularity, since the area that ZIFYL is stored in gets better over time it also improved organs around it.
ZIFYL travels through the blood stream and other areas depending on the way it is gathered, other examples are it being transferred through brain waves the conditions to travel through brain waves are that the density of ZIFYL needs to be extremely low needing a very high control of ZIFYL.
ZIFYl is all around the world but in a low density. place's with a lot of heat like deserts are areas that are fought over with no compromise, the islands next to the equator are being sold, fought for or already owned by powerful organizations. {This is just a example of a alternative universe since I haven't actually finished this power system or decided if I should make a world about this power system, am not saying that this idea I had is gonna be anything unique it might just be complex} { super long last one I know lol}
{low quality will prob get fixed}