"The evil one possesses not evil but life as his essence, and hence he lives immortally. Yet his essence was capable of admitting evil since he was honored with free will. Had he voluntarily accepted a subordinate status and cleaved to the everflowing Well-spring of goodness he would have partaken of true life. But since he deliberately gave himself over to evil, he was deprived of true life and was justly expelled from it, having himself abandoned it in the first place. Thus he became a dead spirit, not in essence - since death lacks substantial reality - but through his rejection of true life. Yet unsated in his pursuit of evil and adding more and more to his wretchedness, he made himself into a death-generating spirit, eagerly drawing man into communion with his own state of death." +Gregory Palamas
Thank you Kolo. Indeed, the satan is more than a fallen angel; he is an angel of death, his own and others’.