Maybe its a sign that you need to cleanse yourself?
In Russia it's a common practice to sit in a sauna and use branches with leaves (often birch) to wave hot air into people and circulate lymph. The branches are waved toward the feet and then towards the hands rather quickly and this creates a lymph flow. The branches cause a convection wave. This is only done after a good 45 minute to 1 hour of sitting in the sauna to generate a nice sweat. The branches do touch the skin so that some of the medicine can absorb.
That practice I mentioned above is meant to make lymph circulate while you are sweating so that way toxins that you weren't removing are excreted. Normally exercise will make lymph flow and the heat generated will make you sweat out the toxins contained in the lymph system. This has to be a consistent practice in order to completely purge toxins, not to mention you need to stretch beforehand and use your muscles correctly during.
Go to a sauna every day for like a week and you'll notice a huge difference in your emotional state IME.
The sweating forming ice seems like a symbol for being unable to have a complete purge/catharsis.
IMO the reindeer are a nice symbol for the new year and the holidays involved, and in Russia it's a tradition to use the sauna on new years.
The flaming birch limb is probably a symbol for a pure emotional state transforming into a superfluous emotional state.
It's a nice dream
I think it's for all of us.