The signifigance of the monkey squeezing through may be that it was the first time (or one of the first) that the nice, neat lines or boundaries a four year old understands were blurred. The fact that you remember it now is signifigant alone.

In english class in junior high I heard the teacher say there were no words with three vowels next to each other. I probably heard wrong, yet the instance of ‘beautiful’ or ‘quiet’ slings me back to that classroom and the memory of that teacher.

The signifigance is the absence of black and white; the reality of grey.