As I continued to read the biography on Paul Dirac, The Strangest Man by Graham Farmelo, I came across this very ensightful quote of Dirac's which gives a very good sense on how we can imagine particles.
When you ask what are electrons and protons I ought to answer that this question is not a profitable one to ask and does not really have a meaning. The important thing about electrons and protons is not what they are but how they behave - how they move. I can describe the situation by comparing it to the game of chess. In chess, we have various chessmen, kings, knights, pawns and so on. If you ask what a chessman is, the answer would be [that] it is a piece of wood, or a piece of ivory, or perhaps just a sign written on paper, [or anything whatever]. It does not matter. Each chessman has a charateristic way of moving and this is all that matters about it. The whole game of chess follows from this way of moving the various chessmen.Source: Farmelo, Graham. The Strangest Man. Basic books, Philidelphia, 2009.