What is Energy?

First of all, what is true definition of energy? Well, it's highly known for it to be providing service from power to work in our daily lives on Earth but it's doesn't do it on its own. Right? Of course not.

Energy is the power made from using of physical or chemical resources, especially to provide light and heat or to operate machinery.

So if you would wanted energy to be made from using the power of the glorious sun to provide enough electricity to let's say to charge your little light tower in your town, you need to use the actual sun's chemical or physical properties to fulfill this. A example of that would be using its solar waves or light. With the light of it, a chemical property, you could convert it simply to electricity from using some solar panels.

You can't gain energy without the use of its resources. Don't even try because it's not possible.

(This is my summary of the definition of energy)

"The energy of the mind is the essence of life," -Aristotle

Energy is just straight out the capacity or outcome of a physical system to perform work.

With the work, energy exists in several forms such as heat, kinetic, or mechanical energy, light, potential and electrical, or other forms as a resultant.