"The Gateless Gate" is a book of 48 Zen Koan (Authoritative laws on truth, and barriers set up by Buddhas and patriarchs to help others reach enlightenment), with what I believe to be- essential commentaries by Chinese monk Ekai. The most recent "wisdom edition" of this book is by Koun Yamada. I give some of my thoughts on Zen with a simple understanding of emptiness for beginners like myself. I read Koan number 1 in the book and give some thoughts on this as well. Thank you for working to better yourself, we all benefit from that!

(Small note- Buddhas and Patriarchs set up the Koans, I say a couple times just the historical Buddha said them, this is incorrect)
-Sorry for the inconvenience.