Brain Waves.

There are 4 main types.

Beta.
Alpha.
Theta.
Delta.

From down to top, that's the sequence our brain switches "into gear" every single day of a normal human being.
And I mean everyday and night.

Let's see.

When you feel drowsy and sleepy, you are emitting Theta waves.
When you actually in sleep, a.k.a, REAL sleep, scientifically stage 3 of 4, Delta waves starts to appear.
When you wake up, back to Theta.
When you stand up, take a bath, go to work, etc. you are emitting Beta waves that let you FOCUS.
When you sit down at recess, takes a break, look out the window, drink to clear the throat, Alpha waves are emitted that controls our creativity and relaxation.
And you go home, feeling tired and drowsy again.

The problem with humans, they tend to ignore Theta and Alpha waves.  When applied driving, it's like switching from first gear ZOOM into fourth gear SNAP just like that.

That's a no good way to live.

In sleep, though, our brain goes like this.

Theta -> Delta -> Alpha -> Theta -> Delta -> Theta -> Alpha -> Delta -> ...

The space where Alpha appears is when we experience dream... I think.
Because trust me, Alpha produces Dreams.

So, I made myself a guinea.... human and made myself asleep listening to Alpha binaural beats.
Almost all the time, I have a dream that I can remember when I wake up.

Most of them were weird, but I can tell you some of them, I can still remember.

Right just now, I listened to Delta binaural beats and... fell asleep.  LIKE A LOG.
The sleep lasted for half an hour but when I wake up, felt like I've been asleep the whole night.
My body was HEAVY and I can't stand up straight, kept feeling like I wanted to just fall.
No dreams.
Although, second try that was minutes ago, felt... strange.
I keep feeling like I was floating.
Above my body.

That's Delta for you.

So, now I feel damn refreshed and.... I think I'll try Delta one more time.

Because damn, this is like walking in a tunnel with only a light as a guidance.

The only thing I'm afraid is either the light would be a blessing of revelation or a flame-thrower.