A point is that which is absent of any form or volume, it can only be observed as the change of one phenomenon to another. Phenomenon composed of points are composed of change.
An example of this would be the line. The point observes the change of one line into another line.
Another example would be all phenomenon resulting in points. An object at a distance is reduced to a point. An object up close is reduced to points. The change in one position of a phenomenon to another results in the phenomenon expanding an contracting from a point. The expansion or contraction of a phenomenon is reduced to (a) point(s) where the point is the median of change from one phenomenon to another.