Nikola Tesla had a sound understanding of phase space; as applied to working with electricity.
This meant he also understood how electricity and life are linked.
He is not well-known because the bankers who funded him had interest in making profit, not freely sharing energy as Nikola Tesla intended.
The folowing documentaries help understand what he stood for:
Tesla technology (and vision) is based on resonance.
It realises the immediate connectedness of consciousness and energy.
Military/banking interests thrive on control and domination; this can cause possible misuse of this concept.