Fasting chicken = постная курица.

This doesn't translate neatly from Russian.

Wiktionary gives 3 translations for постный: 1 Lenten (relating to or appropriate for Lent), 2 (colloquial) lean, 3 pious/glum/hypocritical

But you're not using it in any of those senses really. I guess it's more of a relational adjective for пост (a fast)? I think "fasting" is the best option.

For the record, I have never heard the word "Lenten" before.

Today, (the) Easter fast ends and I recall an oxymoron that I heard when I was a boy.

My family wasn’t religious (aslike most others in the USSR).

We hadidn’t have the Bible and Ior icons in our home, and we didn’t go to church on Sundays.

"or" sounds better - I don't know why.

You could also say "we didn't attend church".

Easter was reduclimited to Easter cakes and red eggs (the best color makes onion peel/husk/skinsonion skins make the best color).

"reduced" suggests it used to be bigger. E.g. "My family used to be devout during Easter: we'd fast and pray. As my parents became less religious, Easter was reduced to Easter cakes and red eggs".

"peel" is associated with carrots and potatoes, "husk" is associated with corn. I would only use "skin".

I didn’t know what a fast iwas, so I couldn’t ask a question how can a chicken behow a chicken could fast / how a chicken could be part of a fast (=meatless)?

I'm not sure what you mean by meatless. I think I'd translate it as lean or fatless.

I haved two guesses.

"had" if this is what you thought as a child.

Maybe thatey were thin, fatless chickens?

Also, there’s an idiom “постное лицо”.

My dictionary says it’s lean/long face/glum expression in English.

I've never heard "lean face" as an expression, only as a literal description of someone's face being thin.

Wherever you are, I hope (that) you are safe and (that) your beliefs don’t force you to risk your life for ithem.

I think the sentence would sound better if you added a "that" in one of these two places. Personally, I would only add one "that", two would be pretty formal.

"beliefs" is plural, so "them".

Fast chicken = постная курица.

Today, Easter fasting ends, and I recall an oxymoron that I heard when I was a boy.

My family wasn’t religious (aslike most others in the USSR).

"like" is more natural and common to liken something to something else

We hadn’tdid not have a Bible and Icons in our home, we didn’t go to church on Sundays.

The "n't" abbreviation is used for auxiliary verbs only. For example: "I can't", "I didn't (do something)"
But here "had" is used not as an auxiliary verb but as "to have" without another verb, so it is not an auxiliary verb
sorry, that's English.

Easter was reduced to Easter cakes and red eggs (the best color makes onion peel/husk/skins (onion peel/husk/skins makes the best color).

I think you mean this?

I didn’t know what fasting is, so I couldn’t ask a question how can a chicken be fast (=meatless)?

here "n't" is correct because "did" is used with "know", so "did" is an auxiliary verb.

I have two guesses.

irregular plural.

Wherever you are I hope you are safe and your beliefs don’t force you to risk your life for it.

Happy Easter!

Thank you!

Today, the Easter fasting ends, and I recall an oxymoron that I heard when I was a boy.

My mother said, “I bought a fast chicken”."

Punctuation usually goes inside quotation marks.

My family wasn’t religious (aslike most others in the USSR).

We hadn’t a Bible andor Icons in our home, and we didn’t go to church on Sundays.

Easter was reduced to Easter cakes and red eggs (the best color makes onion peel/husk/s come from onion skins).

I didn’t know what fast ismeant, so I couldn’t ask athe question , "how can a chicken be fast (=meatless)?" Was it a meatless chicken?

I haved two guesses.

Past tense and plural.

Maybe that wereit was a thin, fatless chickens?

My dictionary says it’ means lean/long face in English.

Wherever you are, I hope you are safe and your beliefs don’that you are not force youd to risk your life for ityour beliefs.