a line of history, a history of lines

Stones with lines.
They come from a piece of Earth’s surface, maybe a mountain.

The stone fell, it rolled.
The river shaped it, round it.

Tim Ingold wrote that "any history of the lines has to start with the relations between lines and surfaces".

A point can never be a line, a line can never be a surface, a surface can never be massive.

Mass becomes surface, made of lines, discrete.

Between my perception and my understanding, the timelines of my thinking appear to be fragmented.