It means the amount of energy is constant in isolated system. It also means that energy has no beginning nor an end. It existed before everything and the matters is the change form of energy….
Now can you believe that a substance (some might wanna call it God) existed before everything exist and the matters is formed as the change of the substance (some called it based on his image)
I’m sorry for my bad english but i think you can get the idea. Thanks 🙂
There are many different forms of energy: chemical energy, electrical energy, solar energy, heat, energy of motion, electromagnetic radiation, and various other overlapping forms of usable and unusable energy. Energy cannot be destroyed, but it can be changed. Einstein showed that mass and energy are, in reality them same thing. (E=MC2). This law states that mass may be changed into energy )as in the case of uranium), and that energy may be changed into mass. But when all factors are considered and combined, mass-energy cannot be created or destroyed: the total amount of mass-energy in the universe always remains constant. You, me, the earth, the stars and the smallest atoms are literally made of mass-energy. Unless or until future evidence reveals this law to be in error, today’s science-minded individual is obligated to accept its description of the universe.