gert
With the natural question of "where did life come from?" aside, I'd like to step forward. How did organisms develop this ability to convert raw energy to "life energy"
The energy currency for living things is a molecule known as ATP {Adenosine 5-Triphosphate}
Wikipedia has an article giving a detailed intoduction to the means by which ATP uses chemistry to produce the energy for use by life. I hope this helps to give you some idea as to how such things work.
As an aside "raw energy" is not different from "life energy" as you called it.
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