What happens to the total energy of your backpack throughout the fall?

The radiation of the fire causes the saucepan to heat up. the conduction of the saucepan then to distribute the heat over the saucepan and to give heat to the water. the convection of the water distributing the heat within the water, till all the water is boiling

Because the sun is the biggest and if the sun orbits the earth we will be dead probably