THINGS TO NOTE DURING THE WINTER SOLSTICE PERIOD
Master Jun Hong Lu: I hope all of you will exercise more caution during the Winter Solstice, especially during the period prior to the festival. Do take extra care to prevent falls, injuries, catching a cold or the flu. These recommendations have long existed in Chinese traditions.
After nightfall, do avoid going to places that are too dark, or that are not well-lit or dominated by negative energy. If you dream of the deceased, you must immediately pray and offer Little Houses to them. During the period before and after the Winter Solstice, it is exceptionally easy to experience unexplainable emotional outbursts or flare-ups besides being prone to injuries.
There was a tradition that advised minimising visits to the doctor or if possible, not visiting the doctor at all because you run the risk of being misdiagnosed with some strange illnesses. You may find that after all the hassle of running around to seek medical treatment, you are not ailing whatsoever. For all you know, this could be a case of being possessed by a foreign spirit.
Source: Baihuafofa20141218, Master Jun Hong Lu’s Buddhism In Plain Terms (Radio Program), 18 December 2014