The reality of every creating thing is arising and passing away in every moment

"The Buddha very clearly said that you feel reality arising and passing away. You may be experiencing a very solidified pain or pressure. It has arisen and it seems to stay for some time, but sooner or later, it passes away. It is not eternal; it is not going to stay forever. As it arises, so it passes away. "This means that when one feels a period where the gross sensation seems to stay, actually there is no such period. A vibration is there—arising and passing, arising and passing. Within that, there are very important stages of the technique. 

The first stage is uppadavaya—arising separately, passing separately. 

The second stage is bhanga, or dissolving. As it arises, so it passes away. It doesn't stay. It's arising and passing, arising and passing. "This makes you understand the entire mind-matter phenomenon and how it works. Everywhere there is arising and passing, arising and passing, arising and passing. You come to the eye sense door, or ear sense door, or nose sense door, or tongue sense door, or body sense door, or mind sense door—it is all mere vibration. Any outside object which comes in contact with any of the sense doors is also vibration. The sense organ is vibration; the sense object is vibration. It is vibration coming in contact with vibration, and it generates nothing but vibration