Because...

The increase in Seth's vocabulary day to day is truly amazing. He all of a sudden comes out with words, phrases or sentences that just stop me in my tracks.

Last week Seth had woken up from his nap. I took him out of his crib. He then said "back in crib." I said "you want to go back in your crib? why?" He said, "because the wind is blowing." I laughed so hard and then Seth realized it was funny so he started laughing too. I have no idea where the phrase came from.