Probably? Sunlight is “one” form of underlying Pranic energy?
When we were working on Project Vampire, that is what we worked on. I know I know “Vampire” sounds parasitic, but as Sap clarified elsewhere, this word was used that time as Vampires were the craze back then (Twilight and all).
What we did there was explore and find ways to absorb Prana from all sources - not as parasites from other living beings - but from environment, celestial bodies etc. And explore ways to use this Prana for healing, manifestation, healing others etc.
This, probably, aims as something similar?