The air sphere is where the demons are doomed to tempt human souls before they turn sent to hell, the final judgment. The demons are of course invisible to the human senses, but the fruits of their actions appear to human misery, chaos, and sin around the world. Even though both demons and angels are beyond the perception of human sense, still belong to the realm of creation and so "to this world." In addition, these spirits are clear forms and are finite in their movements (any quality of infinity that belongs only to God), so, therefore, can be said to have "bodies" in a way similar to the way people do, if not those natural. Fr. Seraphim places particular emphasis, citing too many prominent Orthodox Fathers and spiritual writers, to pray for the dead after because your prayers help some souls reach heaven, calling God's mercy with fervor