From the Best Buddhist writing - chapter THE GREAT DOUBT by Roshi Bodhin Kjolhede
"The greater the doubt, the greater the awakening; the smaller the doubt, the smaller the awakening. No doubt, no awakening."
G. -C. Chang
Ramana Maharishi's moment happened to that moment of self doubt - what happens when I am dead.
When Isaac Newton was asked how he discovered the law of gravity, he replied, "My mind never ceased thinking about it". By focusing our questioning on that single thing, we become more intimate with it as it becomes even more puzzling - until eventually doubt shatters bringing a radically new understanding. Illusion cannot survive intense scrutiny when pursued to the very end. The more thoroughly we probe, the more easier we dissolve.
And while reading this...I remember the moment, a similar experience, when I was in 1st grade, as I unraveled the game of Chess in trying to beat my older brother.
"The most beautiful thing we can experience is the mysterious. It is the source of all true
art and science."