What does "Loess pave the ground, bathe in incense" mean?

In ancient times, there was no cement and only loess was used to pave roads. Walking was a common thing. Bathing is what we call bathing. Talking about incense is a long story. In fact, incense, that is, incense culture has a history of thousands of years. History, when the incense culture was at its peak, basically every household would use incense. All clothes would be incense after bathing and washing. Moreover, the ancients paid great attention to appearance. Even civil and military officials had to wear a piece of chicken coop incense when they went to court. Under the tongue, so as not to smear the emperor with the tone of his words. It can be seen how popular and important incense was in ancient times. Nowadays, there are many incense products on the market, but you must learn to identify them. I know some treasure incense sweet words, hand-made incense, pure and natural incense products, with an elegant and pleasant fragrance, including incense sticks, powders, etc. Hope you can adopt it.