From Mindfulness in Plain English by Bhante Henepola Gunaratana, Chapter 15 ("Meditation in Everyday Life"):
Seated meditation is the arena in which meditators practice their own fundamental skills. The game the meditator is playing is the experience of his own life, and the instrument upon which he plays is his own sensory apparatus. Even the most seasoned meditator continues to practice seated meditation, because it tunes and sharpens the basic mental skills he needs for his particular game. We must never forget, however, that seated meditation itself is not the game. It's the practice. The game in which those basic skills are to be applied is the rest of one's experiential existence. Meditation that is not applied to daily living is sterile and limited.
The purpose of vipassana meditation is nothing less than the radical and permanent transformation of your entire sensory and cognitive experience. It is meant to revolutionize the whole of your life experience. Those periods of seated practice are times set aside for instilling new mental habits. You learn new ways to receive and understand sensation. You develop new methods of dealing with conscious thought and new modes of attending to the incessant rush of your own emotions. These new mental behaviors must be made to carry over into the rest of your life. Otherwise, meditation remains dry and fruitless, a theoretical segment of your existence that is unconnected to all the rest. Some effort to connect these two segments is essential. A certain amount of carry-over will take place spontaneously, but the process will be slow and unreliable. You are very likely to be left with the feeling that you are getting nowhere and to drop the process as unrewarding.
One of the most memorable events in your meditation career is the moment when you first realize that you are meditating in the midst of some perfectly ordinary activity. You are driving down the freeway or carrying out the trash and it just turns on by itself. This unplanned outpouring of the skills you have been so carefully fostering is a genuine joy. It gives you a tiny window on the future. You catch a spontaneous glimpse of what the practice really means. The possibility strikes you that this transformation of consciousness could actually become a permanent feature of your experience. You realize that you could actually spend the rest of your days standing aside from the debilitating clamoring of your own obsessions, no longer frantically hounded by your own needs and greed. You get a tiny taste of what it is like to just stand aside and watch it all flow past. It's a magic moment.
^z - 2016-08-27