Ceremonies
The Bread-and-Wine Ceremony
Most of those who practice the bread-and-wine ceremony have supposed that it was instituted by Christ at the Last Supper, and regard it as central to their life in some way.
The Lord's Supper mentioned in the New Covenant Book was not a ceremony but a gathering of a (social) set, at which the children of members ate and drink with their parents, just as they would have, had any been present, at the passover meal that Christ used as a prototype.
When Christ said "Do this, as often as you drink it, in remembrance of me" (1st Corinthians 11.25), he was telling his followers that whenever they gathered they should think of him. The New Covenant Book calls such an event a supper of the Lord. Every meal shared by reborns as such is the Lord's supper.
The word communion in Christian parlance began as a translation of the New Covenant Book's koinonia which is also sometimes translated as fellowship and means simply sharing or participation. It refers to the ekklesia, whole range of united reborn life and activity. It has no special reference to ceremonies, though if reborns do share ceremonies the principles of koinonia do of course apply to that activity as much as to any other.
The traditional "holy communion" ceremony, with its symbolic meal, is the result of a deliberate reaction against social-set activity, and arose as part of the tendency to ceremonialise.
Ceremonies of Reverence in General
The traditional Christian pattern of ceremonies of reverence ("worship services") is not based on the New Covenant Book. It constitutes a falling back to the Hebrew Synagogue pattern, with maybe some influence from the "mystery cults". The New Covenant Book never describes or prescribes such a stage-managed procedure, and sometimes expressly contrasts with it, or at least broadens it. But words like "gathering", "sharing" (koinonia i.e. fellowship), "prayer" occur frequently.
"Theirs is the latreia" (Romans 9:4) says Paul of Tarsus, attributing high value to the Hebrews' cult as a paidagogos eis Christon ("a guide leading folk to Christ")(Galatians 3:24), but he rejected vehemently by the idea that reborns should emulate this or any other specifics of Hebrew practice, regarding these (Colossions 2.17) as a shadow from which reborns have escaped.
Ceremonies in General
This site has no view on the role of ceremonies in life in general. Personally I am not sure I see any value at all in them, or even understand them. I admit they may have some value, though certainly nothing that should divide reborns.