What do you mean by indefinite five elements?

Generally speaking, it is a comment on fortune. For example, someone likes to travel eastward and is afraid to travel westward. Now he has entered the Yiyou transportation section in Shen Jia, so the main branch of transportation is always fighting. In these 20 years, his luck will be ups and downs, which is instability. If you are in Jiayu-Yi Yin-Maoyun section, you will be lucky for 20 consecutive years. Even when it is unfavorable, it will be a year or two. This is stability. If you meet Geng Shen's heart, you will be unlucky for 20 years. Opposite stability, natural instability.