This star we call the sun has thermonuclear reactions taking place turning Hydrogen into Helium. This gives rise to photons (light energy) eminating from this star. The photons do a 8 min journey from the sun to our planet and strike the leaves of plants. The plants are life forms that have evolved on our planet that use this energy from the sun as well as store it. Animal life eat the plants and release this stored energy by way of the kreb cycle that turns glucose into energy for the animals cells. So there is no life energy, there is just energy.
I think there is this thing we call energy and all the stuff that happens in the cycle of energy and matter; the ebb and flow of all the fundamental forces. Then humans evolved and started labeling shit and confusing everybody.
"You were not there for the beginning. You will not be there for the end. Your knowledge of what is going on can only be superficial and relative" William S. Burroughs