What idea did the late medieval church label as heresy?

that the scriptures should be written in vernacular as well as in latin

that the bible, not the church, was the source of truth

that the earth was the center of the universe

that religion ought to be taught in state universities

a

"the land of the dead"

it's a secular holiday. it is and was a custom developed to recognize the ending of a time and a wish for a good future. the kind of kiss you exchange, if you are single, is intended to predict what kind of year you will have in the coming year.

it is saying good bye to the last year with all its ups and downs, and hello to the new year, with all its hopes and dreams.