Vent is a kind of explosion, will contain the energy burst out, the heart of grievances uneven burst out, physiologically speaking, appropriate to vent on the benefits of people, psychologically speaking, this is the ladder of progress -- because the accumulation of the past is in the heart of the devil. Venting is about letting go, letting go of your scruples and cowardice, letting go of your useless mask. And this one blow blow sandbag, can better vent their bad mood, vent their psychological pressure.