I think that it is important for people to have Blessed Candles in their homes to be prepared for the 3-days-of-darkness.
I believe that the more people that are prepared - the better - for the reason that more souls will survive and eventually reach Heaven.
Here is a link explaining a little more about the 3-days-of-darkness and the importance of having Blessed Candles and places to get them from.
https://mothermary.website/blessedcandles.html
Thanks and Kind Regards in +J M J,
Roger