What is energy?

The power to actualize potentiality

Higgs field coupling with other fields

no, that's entropy.

Should have said
The capacity to actualize potentiality
Brb g2g kms

energy is the amount of motion.
energy of complex objects is sum of motion of their particles (i. e. mass).

Energy. Is.

no that is "inertia". Entropy does not exist.
yes.

its just a whole lot of work.

Newton called momentum "the quantity of motion."

ENERGY IS THE CAPACITY TO DO WORK.

so energy of the system is the difference in momentum for each elements. and the ""work"" is the momentum transfer
the system of two particles moving in parallel with the same speed appear to have 0 energy