Yes, I have learned that:
When stepped on in the dark, a 2X2 LEGO brick causes the same amount of pain as a 2X8 brick.
What they become is limited only by imagination.
When the bricks stick together, great things can be accomplished.
Sometimes it doesn't matter what you are building, as long as you're having fun.
But the pieces can be put back together again.
Some are made for a specific spot - most can adapt almost anywhere - but every one will fit somewhere.
A blue brick will fit in the same space as a red brick.
If one brick is unavailable, another can take its place.
Sometimes it turns out better.
If it doesn't, you can always try again.