The study aims to investigate whether personal factors influences the motivation, perception toward classroom climate, learning effect, and post-class reaction of working adult learners who take a particular Zen class. Study also tries to uncover the relationship between this group of adult learners' motivation and learning effect, their perception toward classroom climate and learning effect, as well as their learning effect and post-class reaction. Through Pearson correlation analysis, the results show that personal factors, besides educational background, demonstrated significant influences on adult learners' motivations, perception of learning climate, learning effect, or post-class reaction. This research also learns significant positive relationship between Zen learners' motivation and learning effect, their perception toward classroom climate and learning effect, as well as their learning effect and post-class reaction.