Here are the dates that are excellent for any type of spiritual work based on the auspiciousness of the Tithis, Nakshatras and Yogas used in Vedic Astrology they are great times to add a boost to any spiritual practice you may be doing.
3rd good
7, 8 & 9
14th New Moon enegry
19,20 & 21st
21st Winter Solstice
24th good
26th good
29th
30 & 31st (good) Penumbral Full Moon Lunar Eclipse
Possible Theme for the month: Favor for the 2021 & of course your goals for the New Years