i do believe that after death your soul lives on. your soul is matter. you can not destroy matter only change its shape and appearance. only restless souls would want to communicate.

not necesarily…energy must be conserved, but it can change form…when we die, our bodies degrade..the energy is converted (there is not such thing as a soul, btw).

You are begging the question. You must show that a soul exists and that it is made out of energy before you can even think about ghosts. There is no evidence at all that souls or ghosts exist and if they do they are certainly not made out of energy. If they were the energy would be measurable, and it isn’t.

Souls are fictitious
Ghosts are fictitious

Both of these are fictitious entities created by our fear and stubbornness of comprehending true death.

When a human body dies, all of its mass and all of its energy both remain in the carcass…until microscopic decomposing organisms feast on its flesh material and convert it via their metabolic chemical reactions in to gasses of decomposition like carbon dioxide and methane along with the organisms’ vital nutrients. If the body is cremated, fire replaces the role of the decomposing organisms, and still conserve mass and energy upon converting the body to ashes, smoke, and heat.

Neither of these entities exist in our hyperplane of existence in the universe. Should they exist, they travel in a parallel hyperplane to us, with a different location in the dimension of existence.

Whether ghosts and souls “exist” is your opinion – but they have absolutely nothing to do with physics.

Physics (and the law of conservation of energy) deals with PHYSICAL things. Things we can test, analyse and predict the behaviour of. Get a ghost in a lab and I’ll give you a medal.