Mindfulness-based interventions aim to train learners’ awareness moment by moment so that they can face both internal and external experiences with open acceptance and non-judgment. Research on mindfulness has shown that the advantages of mindfulness interventions include various physical and psychological effects. Determining and then working with the mechanisms of mindfulness serve as the basis for carrying out valid mindfulness interventions, implementing the principle guidelines of mindfulness education, and training mindfulness teachers. This article aims to clarify the mechanisms of mindfulness for such common factors as attention regulation, emotion regulation, and body-and self-awareness, as well as the ways in which these factors have continuously been found to be beneficial. In addition, specific suggestions for future mindfulness research and interventions based on the author’s training experience of teachers who offer children’s mindfulness education are included.