For me, it’s not a Christian festival, so no religious connotations or symbols.
I celebrate it as a time of light in the dark point of the year, a time of sharing and giving with friends and family, and remembering to reflect and be thankful for all the good things in my life. So I happily deck the house with lights, candles and greenery; and a smogasborg of food and drink to share.
I don’t think it matters why you celibrate, whether you have Christian symbols or not, or that it means different things to different people(and I don’t think it’s a problem in non-Christians have Christian symbols in their decorations as for many people these are cultural / traditional rather than religious).
I just think it’s good to make the most of opportunities for happiness in our lives 🙂