I'm also curious about an answer. If I may take a guess from my own experience. People from Western countries tend to start meditation practice with a specific goal in mind as opposed to just doing it naturally as it is part of the culture. For me a goal is gaining mental strength and balance. After meditating for a while I reach that goal (at least to some extent) and get overwhelmed by the energetic surplus. That leads to either distraction or simply investing this positivity into another goal (work, a project, social activities, ...) leaving me less motivated to further meditate (because it is less "fun" to sit still and work on your mind instead of doing something). After a while the energetic surplus is consumed and I am sooner or later mentally back to square one - because stopping the meditation also stopped the healing and reflection and I'm faced anew with old wounds destabilizing my mind.