Technique That I Havent Seen On This Site

The title says it all,

Last night i found a video,
And a dude was saying that if you think the same sentence over and over again,
Like " Mind Awake, Body Asleep " , " Mind Awake, Body Asleep " , " Mind Awake, Body Asleep "
that you can enter an "altered state of Consciousness"

What happens is that your brain is gettin tricked , into thinking that you are thinking NOTHING
Because you just repeating it over and over it becomes a white noise
So at the point where your brain believes that you are thinking nothin,
It begins to shut down your body to sleep BUT it cant fully shut down the brain because you still are thinking that sentence ,
But it can shut down most of the brain, so what ends up happening is : You fall asleep while fully consious