I read something a while back, on the part where Moshe is standing at the sneh, and Hashem tells him, “Take off your shoes, because the ground you are standing on is holy”
However, prior to that encounter, nothing of any notable significance happened there. So what makes it holy?
The answer given was, whenever and wherever a person realizes the his mission in life, and seizes the moment to move forward with that mission, thats the threshold of holiness.