He makes an interesting point that the Byzantine Metropolitan can be helpful in facilitation and common activity the various eastern and Latin bishops in the USA. This year in Roswell Georgia at Saint Andrew Catholic Church, there was began an annual concelebration on the Divine Liturgy on the Sunday of Orthodoxy (named the Sunday of the Universal Church) with representative priests of the eastern Catholic and Latin Churches there, also with Byzantine Eparch of Passaic William Skurla concelebrating. (Byzantine, Latin, Maronite, Melkite, Syro-Malabar, Ukrainian).
One of the common traditions mentioned is fast and abstinance. And the author Hugumen Nicholas Zachariadis, believes that this is a different purpose for the practice between the east and west, which seems so untrue to me. He states that east emphasizes ascesis and the west penance.
I wonder that he does not know that penance and ascesis are the same, and that the teaching in the west and east is renewal.
From 1967, Apostolic Constitution
Paenitemini Of The Supreme Pontiff Paul Vi On Fast And Abstinence:
The kingdom of God announced by Christ can be entered only by a “change of heart” (“metanoia”) that is to say through that intimate and total change and renewal of the entire man—of all his opinions, judgments and decisions—which takes place in him in the light of the sanctity and charity of God, the sanctity and charity which were manifested to us in the Son and communicated fully.(34)
The invitation of the Son to “metanoia” becomes all the more inescapable inasmuch as He not only preaches it but Himself offers an example. Christ, in fact, is the supreme model for those doing penance. He willed to suffer punishment for sins which were not His but those of others.(35)
vatican.va/holy_father/paul_vi/apost_constitutions/documents/hf_p-vi_apc_19660217_paenitemini_en.html
We see also in the Cathoic Church the four general indulgence grants, available to all Catholics of any Church
sui iuris, are: prayer, service, abstention, and witness to Catholic faith before others.
All of the above are metanoia and particularly abstention is also known as ascesis.