为什么要使用fmt.Sprint？

Question

I really don't understand the benefit of using fmt.Sprint compared to add strings together with +. Here is an example of both in use:

func main() {
    myString := fmt.Sprint("Hello", "world")
    fmt.Println(myString)
}

and

func main() {
    myString := "Hello " + "World"
    fmt.Println(myString)
}

What is the differences and benefits of each?