If you don't find that people find you're easier to live with than you were before, if you don't find that your heart is feeling warmer toward others and if your negative emotions are not getting any better, then there's something wrong. That is always the touchstone of the Dharma practice.
Tenzin PalmoNowadays, mindfulness has become a catch-all word, but the general principle of trying to be more conscious and aware in our daily life is very important. Along with this, it's helpful to contemplate some of the mind training verses which are designed to take and transform all of the problems we experience.
Tenzin PalmoI'd say look at the teacher's students. Do you want to be like them? If you see a good and harmonious sangha, and if they're practicing well and are good people with good hearts, then you have a cause for trust.
Tenzin Palmo