What does the insurance receipt mean?

That is, after the insurance contract comes into effect, you should sign it to prove that you have received and understood the details of the contract, especially the life insurance contract. There can be a cooling-off period, from the date of signing this receipt, 10 days. During this period, if you feel that it is inappropriate, you can surrender the insurance in full, otherwise you will get a refund according to the cash value after 10, so that you can sign the date at the same time to prevent the salesman from advancing the date!

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