Do you believe that there are a host of saints living on earth right now, in their earthly bodies?
If you’re asking do I believe in the Church Militant, of course. Again, all part of the Mystical Body of Christ and in Communion with the previously discussed Church Triumphant.
If you believe in intercessory prayer and you believe that we are part of one family or one body of Christ and that what we do for others and ourselves, good or ill, affects the whole, you are close to understanding the Communion of Saints.
If you understand stand that we do not cease to be part of this family of this One Body of Christ when we pass from this existence on earth, then you are even closer to understanding what is meant by the Communion of Saints.
Now, if you enter into the Holy Eucharist in the Communion of Saints, you begin to understand Jesus’ prayer in the garden and the significance of Catholic worship.