A bubble bursts soon after it has been formed. A mirage conjures up an image of reality which disappears on close examination. There is absolutely no substance in either of them. This is common knowledge. As we know their true nature, so also must we know the true nature of the phenomena. When a meditator acquires knowledge of concentration through the observance of the dissolution of the aggregates (khandha), he will discover that the known object and the knowing mind are all in a state of flux, now appearing, now vanishing. They are transitory. There is no essence or substance worthy to be named “mine” in them. They signify only the processes of becoming and dissolution.
Mahasi Sayadaw
source: http://www.accesstoinsight.org/lib/authors/mahasi/wheel298.html
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