What do you mean life is in danger?

In the words of fortune telling, the initial limit, the middle limit and the final limit refer to early age, middle age and old age respectively. There was a disaster at the age of 49 in middle age, but after the disaster, life was re-polished like a rusty iron mirror, revived and reached its peak, just like the bright moon reached the full moon stage. In fact, it means that after the disaster, there is luck, which is hard to come by.

Further reading: How to buy insurance, which is good, and teach you how to avoid these "pits" of insurance.