Difference between gulp.src and path option?

[goldingdamien]

What is the difference between gulp.src and the path option?
It is stated that multiple directories can be passed to gulp.src. If this is true, my assumption is that the web server is an empty directory filled with whatever is in gulp.src. However, if this is true, why is there a path option as there would be no path in this case.
Please clarify this for me and if not too much bother, it would be helpful if this information was provided in the README.md file.

Regards.

[noraj]

src

path