I would say that Saints like St. Padre Pio, St. John Vianny, St. Rita, fulfilled the commandments of god with beautiful perfection, had Christ living in them and had signs both during and after their death of how pleased God was with them.
Jesus Christ was God but also fully a man , and as a man, had various aspects. No one of us can fulfill all His aspects, because of our sinfulness. We have to choose an aspect and copy it as best we can. St Padre Pio chose one manner, and St. Isaac the Syrian chose another.
With that I would like to offer you this little section from the book the Imitation of Christ by Thomas A Kempis, a western classic that has helped many a sinner become a Saint around the world.
I think the catholic saints are most close to the orthodox saints of all denominations and religions.
I love the priest John Vianney and Philip Neri. I read the life of many catholic saints, but the life and character of this two I appreciate most. Beautiful persons!
But what I tried to point out is especially the prayer life of the orthodox saints. For me the difference between catholic and orthodox saints lies not necessarily in the way of life, but in the dimension
, especially in prayer life. They had been praying unceasingly
for the whole world with the deepest love. Who knows the Jesus Prayer, he can also understand how it's possible to pray unceasingly for humankind. The roman catholic saints are more focused on Christ's physical pain on the Cross(stigmata) but the orthodox more on the prayer of Gethsemane, where Jesus prayed so deeply, so that he was bleeding! Fr. Sophrony said once, that Padre Pio is a good man, but that the stigmata are produced by the imagination. The RCC have stigmata and the orthodox church the vision of the uncreated light
, what is an interesting difference!
It's also known that many catholic saints used imagination for their prayers, what was strongly forbidden by the holy fathers and other saints. And the most catholic saints didn't know the way of unceasing prayer..
I don't know if it's impossible to fulfill all the aspects of Christ. I think maybe it's possible, but not in the perfection of God, but in the perfection of a man.
I believe some catholic saints were deeply fulfilled with the grace of God! I mentioned at the beginning the conversion of Klaus Kenneth. At the age of seven or eight years he swore that he'll never cry again (he had a terrible childhood, but he was also proud). And he hadn't been crying again until he reached the age of 32 years, when he visit in Calcutta as a hindu the church where Mother Teresa was. And when he tried to pray with her with a prayer book he started to cry for hours and after so many years!! She was such a grace filled person. But Klaus says also that Elder Sophrony although he didn't do such great things like Mother Teresa, he was much greater in love than her.
I don't know the Imitation of Christ by Thomas A Kempis, but I love the book " the unseen warfare" of Lorenzo Scupoli!:)