Releasing and Letting go

[HiperX]

Hi my fellow brothers.
There is a video on Jewtube about some feeling of your emotions and releasing by Letting go.
The video is just a example , there is books from David Hawkins : letting go / sedona method / etc..

https://youtu.be/sP_4dLcUEoE?t=470
I set the video on 7:50 where he speak about bypass your throat to feel your "4th/3rd/2nd chakra" and "Opening" they

Dont promoting anything , just curious about the method I found before SS.
What is behind steps : 1.Welcome feeling , 2. feel it in your body and 3. Let go
As a newbie want to know what is behind this method, what is "Letting go"?. He just cleaning his chakras by this ?