
[1] https://www.amazon.com/Opening-Hand-Thought-Foundations-Budd...
[2] https://www.amazon.com/Zen-Mind-Beginners-Informal-Meditatio...
I've been practicing zazen on a daily basis for almost twenty years now, and Tai Chi Chuan for almost as long. I am extra lucky in that my wife practices as well, and often we spend whole weekends and even vacations meditating together.
We get most of our inspiration to practice from Uchiyama Roshi, who wrote "Opening the Hand of Thought", and his student Shohaku Okumura who is now teaching in Bloomington, Indiana (and has just published "Realizing Genjokoan" which has also been profoundly helpful to us).
There have been many experiences both painful and joyous, but none of them last, no matter how much I've wanted them to. The lesson of course, is that you must let go, no matter what. According to Uchiyama, the first step to sincere practice is to clarify death. Since none of the stuff we normally value (status, wealth, relationships) stay with us when we meet that final experience, it is obvious that we must let go of them and settle on what is of true value. As a buddhist, what has true value is the true self, which is the self that is connected to all other beings. We practice zazen to let go of our petty self, and allow the true self to manifest, similar to how a Christian's or Muslim's true faith in God could allow God's love to act through them. For me, zazen has always been an act of faith towards the belief that there is this true self, that it is interconnected, and interdependent, and that it is in all of us and that it transcends each of us. This faith allows me to let go, to trust everything to zazen, and unclench however slightly from my selfish preoccupations.
I would say the greatest benefit of meditation for me is this realization that I can let go, that I am not a prisoner of my delusions no matter how persistent they may be, and also this faith in a true self that carries me through difficult circumstances and helps me correct course when my actions fall short of my ideals.
For example, he was a Zen master whose writings reached a broad audience and provided a modern voice for a tradition where some of the foundational works such as the Platform Sutra are roughly a thousand years old. For other modern Zen voices, there are books such as Three Pillars of Zen, Dropping Ashes on the Buddha, Opening the Hand of Thought, and probably many others. (Albert Low is on my to-read list.) All of those are by authors who died before Thich Nhat Than, though.
He also was an activist and an original proponent of "engaged Buddhism," in which compassion is seen to mandate action for social change. I'm sadly ignorant of the current landscape here; the Dalai Lama and Gary Snyder certainly count, but they are both getting on in years.
He also wrote a lot of books that are light on doctrine but very direct, grounded, and gentle, that people have found comforting and supportive in a crisis. For that, many people look to the books of Pema Chödrön, Tara Brach, and Sharon Salzberg, who are at least a little bit younger, but all in their sixties or older.
