There's not much proscribed and what is proscribed I agree with and do not engage in. But I'm assuming you meant to use another word besides proscribed.
The Encyclopedia of Religion should be ashamed of itself. Halloween is a contraction for "All Hallows E'en", or "All Hallows (i.e. All Saints) Evening". "Halloween" just means is the evening before All Saints Day. It's not a name for Samhain AT ALL. The name is purely Christian.
There’s not much proscribed and what is proscribed I agree with and do not engage in. But I’m assuming you meant to use another word besides proscribed.
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Ouch, you are correct, the use of proscribe was incorrect. Wildly incorrect at that. Oh for an edit button. And now it’s really hard to ask a somewhat snarky question after botching my word choice.
Change proscribe to prescribe. You can take it from there (or not).