Chapter and verse on the subject.
Back here on earth the Advent wreath signifies the coming of Christ we enjoy the lighting process and is full of life whereas the wreath sans candles is laid in remembrance of lives lost and we do this for our loved one's as a celebration of their lives. For that very reason we don't hang one at our door.
Like so many things Wreath making has become a cult thing and great money spinner down here and probably nationwide.
LIDL sell a good door rendition for 10 quid ;-)
We recently had some maid rootling through our Brown Bin for sprigs of our black Pittisporum which we had recently savaged as she plies her customers with a coffee and they trot home with their effort £65 lighter.
We were quite happy for her to part empty the bin.