You seem to have received everything in a very traditional way, no need to have doubts. The reason why the samaya isn't explained in greater detail I think is because it can make people obsess with rules instead of enjoying the practice. In particular if you are a beginner. When you have devotion, compassion and continuously do the practice with great joy you will keep the samyas automatically.Shemmy wrote: The vows were invoked while the empowerment was being given, that we would be faithful to the lama and keep the samayas at the cost of our life. I feel the teacher is excellent, just a little less practically oriented than I would like, with not much explanation about how to practice/apply teachings.
The sadhana was the medium length Kater Dorsem from the Dudjom Tersar, and I feel the sadhana is easy and and powerful, I have practiced a lot of types of meditation, Buddhist and non-Buddhist and I am very inspired by the practice. It seems just the thing to do after doing my ngondro.
There are a huge amount off material on the Dudjom Tersar and Vajrayana available on the internet and as soon as any Lama come to Thailand to teach, like Pakchok Rinpoche, you can resolve any questions that you have. Dudjom Tersar contains a huge amounts of teachings, it will keep you busy for the rest of your life.