"Those baptized are fully in the communion of the Catholic church on this earth who are joined with Christ in its visible structure by the bonds of the profession of faith, the sacraments, and ecclesiastical governance."
We believe in one God,
the Father, the Almighty,
maker of heaven and earth,
and of all that is, seen and unseen.
We believe in one Lord, Jesus Christ,
the only Son of God,
eternally begotten of the Father,
God from God, Light from Light,
true God from true God,
begotten, not made, one in Being with the Father. [original language: consubstantial with the Father - St. Flavian WAS MARTYRED for those words!]
Through him all things were made.
For us men and for our salvation,
he came down from heaven:
by the power of the Holy Spirit
he was born of the Virgin Mary, and became man.
For our sake he was crucified under Pontius Pilate;
he suffered, died, and was buried.
On the third day he rose again
in fulfillment of the Scriptures;
he ascended into heaven
and is seated at the right hand of the Father.
He will come again in glory to judge
the living and the dead,
and his kingdom will have no end.
We believe in the Holy Spirit,
the Lord, the giver of life,
who proceeds from the Father and the Son.
With the Father and the Son he
is worshipped and glorified.
He has spoken through the Prophets.
We believe in one holy catholic
and apostolic Church.
We acknowledge one baptism
for the forgiveness of sins.
We look for the resurrection of the dead,
and the life of the world to come.
THAT is our Faith, summarized there. And people have DIED for that declaration of Faith! Bishop St. Flavian was one of them; he was trampled to death by the raging Arians. If the above is not what you are praying at Mass, then you are NOT in full communion with the Church. The above words CANNOT be changed to suit a different ideology; they have been dogmatically defined and the above is an INFALLIBLE teaching.