You are to find and recover a long lost, powerful energy source before it's too late. (invisioncommunity.co.uk)
The theory behind earthing — which essentially means walking barefoot — is that the earth is one of the most powerful energy sources; when our bodies make direct contact with the ground, we absorb the earth's beneficial, natural energy in the form of electrons. (mindbodygreen.com)
Things we thought were inert rocks were really powerful energy sources. (discovermagazine.com)