It's a bit difficult to describe what it does but it all makes sense when you hear it. The versatility is almost endless. Whatever sound you splice up can be pitched, reversed, delayed and filtered before being sent to the output.
I'd like to tell you I have some unique creative process to how I went about this, but basically I started out with importing a tonal hum sound effect into my session and began experimenting. As I processed the sound more it became apparent that I was going in the whoosh direction and kept on tweaking. Feel free to take a listen: