https://en.m.wikipedia.org/wiki/Lamrim https://en.m.wikipedia.org/wiki/Lamrim "the way to train your mind after developing the mind of enlightenment, by traini

https://en.m.wikipedia.org/wiki/Lamrim https://en.m.wikipedia.org/wiki/Lamrim "the way to train your mind after developing the mind of enlightenment, by training the six perfections: 1. training in the perfection of generosity 2. training in the perfection of ethics 3. training in the perfection of patience 4. training in the perfection of joyful effort 5. training in the perfection of concentration 6. training in the perfection of wisdom" Number 5 is meditation, or shamatha. Volume 4 of lamrim explains at length what meditation is and how it's achieved. It also repeatedly reminds the reader that this gigantic book is just a brief summary of the more foundational sources, such as sravakabhumi (the ten grades of sravakas). Problem is, neither book, that volume 4 in particular, has been translated to western languages. Still, it's a good starting point to do your own research.