In the following link, they says "Tense expresses proximity (Present) or distance (Past), in relation not only to time, but also to possibility and status." http://www.gabrielatos.com/TTA.htm
Because I cannot even explain with confidence what is past, the web page seems to be a way out of my perplexity. However, they are completely new things to me. May someone please explain some more about the new theory to me? How to define proximity and distance?