The main operating mechanism of DAI is P2P lending (peer-to-peer lending, currently DAI is the number one monthly P2P loan transaction). In order to borrow Dai, you can use MakerDAO smart contract to deposit and lock ETH and exchange 67% of value with DAI tokens.

This way, you can still keep your ETH, and put this ETH into a CDP contract and pay the loan, then you will have 1 DAI to re-invest in the asset portfolio. other. The number of borrowed DAI should not exceed the alarm threshold, because if the price of ETH drops sharply, your CDP will be easily liquidated and sold to other users in the system, you will lose this ETH. On the contrary, if the value of ETH increases, you will naturally still own this amount of ETH and also have the potential to profit from investing the DAI you have borrowed to follow other coins.

Some characteristics of DAI
A DAI will always be worth $ 1.
No government or other centralized authority can shut it down.
No individual can control it.
Like other cryptocurrencies, it can be exchanged directly and bypasses all middlemen.
It can be traded freely like any other ERC-20 Token.
It brings reliable stability to the volatile cryptocurrency ecosystem.
Anyone from anywhere in the world can receive and send it with just an ETH wallet