According to modern geometry the point is the minutest unit with which a line is drawn. The point is indivisible and without length and breadth. When we think of bindu as the minutest unity we are reminded of the concept of paramānu ( Vaiśesika defines paramānu as : mūrtatve sati niravayavah : being limited, it is without any body part ).
In Yogabhāsya of Vyāsa we find that a substance when reduced to its minutest unit is called paramānu , and in the same way the minutest time unit is called ksana. But bindu is neither a time unit like ksana nor a space unit like anu. It is a unit of consciousness , and at the same time becomes body of the material world.
It reminds me of T. S. Eliots’ poem ‘Four Quartets’ in which he refers to a ‘still point’ that is ‘more than a fixity’. I quote from the First Quartet called ‘Burnt Norton’ :-
“At the still point of the turning world. Neither flesh nor fleshless;
Neither from nor towards; at the still point, there the dance is,
But neither arrest nor movement. And do not call it fixity,
Where past and future are gathered. Neither movement from nor towards,
Neither ascent nor decline. Except for the point, the still point,
There would be no dance, and there is only the dance.”