A really interesting read/watch.
The mind is, as they say, a chattering monkey and to still it is no easy task.
I have only managed several times and it is at this point that I receive flashes of light and split second visual messages.
This state is illusive indeed and for sure the more a person chases it the more slippery and evasive it becomes.
I wrote a short piece on Zen the other day and invite your comment: https://steemit.com/spirituality/@ldacey-laforge/searching-for-zen
Wishing you well.
xox
Keep it up and those split second moments would be longer and more frequent. Personally what I've had is a constant slow improvement of my analytical skills and instincts. When I rewatch an old interview, I pick up ay more subtle information compared to a year ago. That's what it's been like for me.