In Go, embedding a struct is achieved by declaring one struct as a field of another struct without specifying a field name. This embedding makes the internal fields and methods of the embedded struct directly accessible to the outer struct. It is a form of composition that enables Go to achieve behavior similar to inheritance.

For example, if you have a `Base` struct, you can embed it within another `Derived` struct:

```go
type Base struct {
    Name string
}

type Derived struct {
    Base  // Embedding the Base struct
    Age int
}
```

In this case, the `Derived` struct automatically inherits all fields and methods of the `Base` struct. Therefore, you can directly access the `Name` field through an instance of `Derived`, as shown below:

```go
d := Derived{
    Base: Base{Name: "John"},
    Age: 30,
}

fmt.Println(d.Name)  // Output: "John"
```

Thus, the `Derived` struct instance `d` can directly access `Name`, even though it is defined within the `Base` struct. This approach simplifies relationships between structs and promotes code reuse and extension.

How to Embed Structs in Golang?