Heres what I do to get into the theta gamma sync
and it works very quickly after a little bit of practice.
Close your eyes and imagine you are looking at a blank screen.
Make this screen red for a few seconds.
Then make it orange, yellow, green, blue, indigo and finally violet.
Hold violet in your mind and count down from 10.
You will now be in low Alpha.
Finally say to yourself "I’m at brain wave cycle 8,
I’m at brain wave cycle 7, I’m at brain wave cycle 6,
I’m at brain wave cycle 5"
You will now be in the Theta/Gamma sync
experiment with the last bit. you may need to go
down to level 4 or to level 4 and a half.
This method is not my own.
I first read about it in the brilliant book
"Power of The Witch by Laurie Cabot"
where it is called “the crystal countdown”