The underlined sentence of Water Margin mentions the details of brazier in two places. What is the function of the author's writing like this?

The brazier is mentioned twice in the ninth description of the Water Margin, which promotes the plot development through detailed description and depicts the characters' personalities. 1. Promoting the plot development With the appearance of several descriptions of fire (pots), readers have experienced doubts (how can there be frequent fires in such a place that is easy to catch fire in the forage yard), to worry (whether Lin Chong will inadvertently cause a fire), to rest assured (Lin Chong confirmed that the brazier was extinguished twice) and to greater doubts. This suspense of the plot keeps readers' reading expectations. 2. Depicting the character Lin Chong was going to sell wine to eat. When he left the forage field, he "covered the charcoal ... and locked the two grassland doors." After the grass hall was overwhelmed by the snow, Lin Chong "was afraid that there would be coals burning in the brazier", and then "all the kindling in the brazier was drowned out by the snow when he leaned in to touch it", and then he "slammed the door and locked it" and went to the mountain temple to settle down.

These detailed descriptions show Lin Chong 'an's self-discipline and cautious personality.

This is also the Water Margin game, Baiyi Water Margin, which was downloaded from the 789 Game Center.