There is a story in Zen circles about a man and a horse. The horse is galloping quickly, and it appears that the man on the horse is going somewhere important. Another man standing alongside the road, shouts, ยซWhere are you going?ยป and the first man replies, ยซI don't know! Ask the horse!ยป This is also our story. We are riding a horse, and we don't know where we are going and we can't stop. The horse is our habit energy pulling us along, and we are powerless.
Nhat HanhSometimes you have a flash of insight, but it's not strong enough to survive. Therefore in the practice of Buddhism, samadhi is the power to maintain insight alive in every moment, so that every speech, every word, every act will bear the nature of that insight. It is a question of cleaning. And you clean better if you are surrounded by those who are practicing exactly the same.
Nhat Hanh