Walking on stones, as well as stacking stones, is a kind of ritual. In the first case, you catch your balance, choose the next one to step on so that you don't fall. In the second case, you create a figure, a picture, an order, so that it would be beautiful, reliable, strong... And so every day we step on these stones, and sooner or later there comes a moment when from every stone in your life you assemble a picture. And this time the picture is made of dry facts, where there are no emotions, but only pros and cons. Analyzing each one you are likely to give an unambiguous assessment of the act/decision that was then in the past.
In all of this, there's a strong point about past stones - you can't change it anymore! But what about future stones? If you can surely feel the slippery slope ahead... how to be able to see the same stone, but already as if in the past? Unfortunately, only by stepping on it can we realize... And yes... only years later.
Do you have such moments in your past (stones) that even today you do not have an unambiguous "for" or "against"? Are there any moments in your past life that even now you don't know what would be the best thing to do?