What a stunning idea and a beautiful looking App!!! - it's very nice to use. Particularly convenient is the ability to make in-App purchases without the tedium of opening up another App. But the ability to transport you into another glorious dimension makes this App a haven for the weary. I use it more and more all the time as it is a refuge from the hubbub without actually being distracting - this is why writers and artists escape to the wilderness - nature sounds stimulate the creative mechanism. The holographic sound is truly gorgeous and it's astounding how well it works to revive body and mind.