Lynn I love your analogy of the straight line and the dots. " Mr. Sweeney said that a straight line is just a series of individual dots." If you take any two dots next to each other, there is still an infinite number of dots between them, wow! What an illusion that gives us the "feeling" or experience that we understand what is going on. Geometry especially is so eloquent and precise. In addition, Science is slowly finding out that there is a connection a wholeness between our psyche and matter.
I agree with you that being in the NOW, time does not exist.