Imagine a smart contract like a vending machine. You put money in (transaction), and it gives you a snack. But what if you also wanted a receipt? Event triggers are like those receipts for smart contracts. When a transaction is completed (like buying something from a smart contract), the contract can emit "events" and write logs to the blockchain. These logs can then be accessed by the user interface (frontend) to show you what happened. So, event triggers provide a way for smart contracts to communicate with applications and keep users informed.
