When i think about Einstein's E=MC2 , i simply understand by this that everything is merely an energy ( or a form of energy). matter is the form of an energy. whatever it's state (solid, liquid or gas). Even our mind Secreting hormones which affect our emotions or our mood. Hormones are matter in liquid state, it decompose in blood and affect our body and our behavior. hence, we can say that Hormones are a form of energy.
now let's see this emotions with the view of psychology. we use our sense to collect data. some data suddenly trigger our emotions and we get angry, scary or happy etc. but human evolution also affect this. may be someone get scared by fire or one can have phobia of high elevation because they never face it before. but our emotions affect our decisions. many people claim that emotionally calm people are stable and mature.
now we come to god. many holly scripture ( of any religion) write some sentence that god happy by this or angry by this action of human. god create us. so does god also have silly emotions like human have? if i come again to Einstein so he said once " this world is created by a power,about whom we don't know".
knowledge and imagination plays very crucial role to maintain peace in the world. their are many religious myth which have been become the cause of terror, death, underdevelopment etc. Islamic terror is the best and Important example of this kind of myth. not only terror but human itself waste it's time to make happy god ( the creator of Existence).