Syntax is like the grammar rules of a programming language. It's a set of rules that defines how you should write code in a way that the computer can understand. Think of it as the language's rulebook, just like how we follow grammar rules when writing a sentence. In programming, each language has its own syntax that you must follow. It specifies how to structure commands, use punctuation, and arrange words so that the computer can execute your instructions correctly. It's a bit like putting together a puzzle with pieces that fit together in a specific way. Syntax errors occur when you don't follow these rules, and the computer can't make sense of your code, similar to writing a sentence with incorrect grammar that doesn't make sense.