Catholic theology
Catholic belief holds that the church exists both on earth and in heaven simultaneously, and thus the Virgin Mary and the saints are alive and part of the living church. Prayers and devotions to Mary and the saints are common practices in Catholic life. These devotions are not worship, since only God is worshiped. The church teaches that the saints "do not cease to intercede with the Father for us. ... So by their fraternal concern is our weakness greatly helped."
Roman Catholic (term)
"Roman Catholic" is generally used on its own to refer to individuals, and in compound forms to refer to worship, parishes, festivals, etc. Its usage has varied, depending on circumstances. It is sometimes also identified with one or other of the terms "Catholic", "Western Catholic" (equivalent to "Latin Catholic"), and "Roman-Rite Catholic".