What does the insurance diamond represent?

Insurance is a financial transfer method to transfer risks. It is to set up funds for a large number of homogeneous risk factors in the form of money to provide recovery funds for sudden risk losses. His role can be divided into two categories: macro role and micro role. The macro function is to ensure social stability, and the micro function is to restore the insured to the economic state before the accident as soon as possible.

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