[Resettozero]

To offer fitting worship to God and to have access to the grace of God to increase our love for him.

Is it possible to do this without ever participating in a Roman Catholic church mass? Is it possible for me, presuming I remain a non-Roman Catholic from now until the first death?

[MHGinTN]

Vatican II, in confirming complete agreement with Trent says that actually without being a Catholic you are doomed to eternal damnation. However, at the end of Vatican II there is a blurring of this agreement to allow for salvation by God’s Grace to Buddhists, Moslems, Hindus, etc.

[Petrosius]

Is it possible to do this without ever participating in a Roman Catholic church mass? Is it possible for me, presuming I remain a non-Roman Catholic from now until the first death?

The only fitting worship of God the Father is the sacrifice of Jesus upon the Cross. With the celebration of the Mass this one sacrifice is presented to us so that we can join ourselves with Jesus in this sacrifice. This is why Jesus gave us the command to "do this in memory of me." The "this" is not just a communal meal but the new Paschal sacrifice that began with the Last Supper and was completed on the Cross.