This post was taken from a thread on Mary’s perpetual Virginity, where it was off topic.
Uhuh, the communion of saints is all of us saints as a whole, earthly and heavenly… Unless you don’t believe all of us Christians are saints, I don’t know.
Communion of Saints
The unity and cooperation of the members of the Catholic Church on earth with those in heaven and in purgatory. They are united as being one Mystical Body of Christ. The faithful on earth are in communion with each other by professing the same faith, obeying the same authority, and assisting each otherwith their prayers and good works. They are in communion with the saints in heaven by honouring them as glorified members of the Church, invoking their prayers and aid, and striving to improve their virtues. They are in communion with the souls in purgatory by helping them with their prayers and good works.