@reddust, I'm glad to see your meditation lesson. Something I learn from your contents. Very interesting and appreciate your buddhist meditation knowledge. I have long experience of meditation methods. But also you have extra experience and knowledge.
My main study is the Maha sattipathana
https://www.accesstoinsight.org/tipitaka/dn/dn.22.0.than.html
My favorite translator, he has the juice ;-)
I was taught it is good to go into retreat with the beginners mind, so my teacher taught me the basics and my meditation teacher taught from the sattipathana. After five years or so I graduated the Mahayana teachings, my favorite are the Prajnaparamita and the Vimalakirti sutra...I love Vimalakirti and the prajnaparamita made me cry in a few parts, it's been so long I can't remember. I have the shorter version <3
http://www2.kenyon.edu/Depts/Religion/Fac/Adler/Reln260/Vimalakirti.htm
It's glad to hear and sound being cool. Yep some parts there can make cry.
I think I will read the vimalakirti sutra today, its nice to revist older teachings and remember how awed I was reading the Dhamma when first started. I remember how I felt like I was coming home and remembering things I had forgotten.