The profit from ETH (Ethereum) can come from several sources:

1. *Investment*: You can buy Ethereum and hold it as an investment, expecting its value to increase in the future.

2. *Trading*: You can trade Ethereum on trading platforms by buying it at a low price and selling it at a higher price.

3. *Mining*: You can mine Ethereum using powerful computers, solving complex mathematical problems to secure the network and earn rewards.

4. *Usage in applications*: Ethereum can be used in decentralized applications (dApps) and smart contracts, which can increase the value of the currency.

5. *Participation in the network*: You can participate in the network by providing services such as transaction verification or providing network infrastructure.

You should be aware that investing in cryptocurrencies carries risks, and the value of the currency can change significantly. It is important to research and learn before investing in Ethereum or any other cryptocurrency.