satipatthana

In a nutshell,mindfulness leads to ever greater and stronger mindfulness.
Immediacy
Immediacy in the awareness of an object of observation is very important.Nothing should come between the presently arising object and the nothing and observing.The arising object and the nothing mind should not be separated in time.The observation of the presently arising object should happen at once,without any delay.It should be instant.As soon as the object of observation arise,it should be noted and observed.
If one`s nothing and observing is delayed,then the object will have already passed by the time one`s awareness turns to it. Objects of the past and future cannot be known correctly,and if the attention cannot remain with objects they arise,then it is no longer vipassana practice.It is no longer dwelling in the reality.
Concurrence
When two or more processes occur at the same time,it is the phenomenon of concurrence.Concurrence of the nothing and observing mind and the object of observation is an important aspect of sati. For example,when an object arises,the mind falls on the object simultaneously with its arising, synchronically with it.
Extraordinary mindfulness
The particle pa of sati-pa(t)thana specifies that the mindfulness should be of an extraordinary or outstanding nature(visittha);excessive,intensive and persistent(bhusattha).Ordinary mindfulness is out place in intensive satipatthana meditation.It is this nature of the particle pa,and its practical aspects,which we shall now explore.