Someone is officially declared a saint in the RCC if miracles are attested to them. When an ordinary person dies they go to join all the saints that have gone before them, ie: ordinary people/saints (Similar in some ways to the JW 2 class system?)
the bible teaches that the dead know nothing (about what's presently going on in this realm) and therefore can't help us AND that we are not supposed to pray to or try to make contact in any way with departed familiar spirits. It seems that the teachings of both the WTBTS and the RCC regarding this aspect of the other realm are by guess and by golly...in fact and unfortunately, traditions of men that have made void the word of God.