[bionsuba]

That's not quite true. Catholics pray for their ancestors and pray to the saints when not praying straight to God.

[nsxwolf]

This isn't true. All the saved are saints, even if they aren't canonized. It is reasonable to assume that they are in such a state and thus engage them in intercessory prayer like any other saint.

[bionsuba]

Right, but Catholics don't know who are the saved. So, they pray to God and the saints for their ancestors because they might not be saved.