What do auspicious days, ominous days and weekdays mean in the lunar calendar?

People in China always do things for good luck. As the name implies, auspicious days mean that everything will go smoothly without any obstacles or anything bad. Accordingly, a bad day is a very bad day. Things are not going well, or you have some troubles you don't want to have. That's how it got stuck anyway.

It's not bad on weekdays. In other words, China people emphasize the golden mean.

So it seems that according to the tradition of China, things that are not particularly urgent will not be too far from normal, nor will they be too far from intense.

Help, please adopt. thank you