How deep should a 4yr old think???

I have found myself wondering this ALOT lately. I am realizing I don't think deep enough to keep up with ATM. Sigh. Let me explain.
She had been making bad choices multiple times daily, for multiple days in a row. This is not normal for her. She is usually an awesome listener and obeys very well. However, it was a rough 5 days. Maybe even a week. Eeeeeks! It wasn't pleasant. I was worried this was the "new her". Anyway. The 5day saga started here... We were at the store when she decided to throw a fit- on a four yr old level. Ashlynne doesn't throw fits. I was shocked. It lasted much longer then I wish. There was arguing, tears, not so nice facial expressions given to us by her, and looks of shock we gave back. Dustin witnessed this thankfully, because I think he would have had a hard time believing it had I have had to tell him. We told her to take a minute, stop talking, and think about what she was saying before she said it. Didn't work. Just got worse. So on the way home, we talked to her about making right choices, and what was not ok with what she did, and encouraged her to make better choices. etc. We never want our children to feel like we hold what they do against them, or that they never meet our approval, so we usually deal with the situation and move on. So we dealt with it and moved on, encouraging as normal. About an hour later she informs us that "by the way, your little Ashlynne was on a little vacation back there at the store, but she's back now!"  We laughed. We told her we were glad she's back. Anyway. The next few days were not good. I was praying, scratching my head and ready for some divine wisdom. So Dustin was putting her to bed and He asked her about her day, and she opened her precious little heart, invited him into the moment by saying that she "didn't make good choices today, daddy." He asked her like what, she told him, and she told him she had been doing alot of thinking... "Daddy, I have been thinking. I know why I haven't been making good choices." "Oh? Why is that?" "Well, because my head and my heart have a disagreement. My heart says to do what's right and my head says to do what you want to do. So that's why I don't make good choices. They just can't agree." We thought that was brilliant! THEN, the next night... "Daddy, I think I know why I didn't make good choices again today. I figured it out!! You see, there is a pipe that goes from my heart to my head. Choices go through that pipe from my heart to my head, and that's how my heart tells my head to make good choices. But sometimes that pipe gets plugged up with bad choices. Bad choices look like little grapes with legs and they get stuck in that pipe. When they get stuck, it plugs up the pipe, then when my heart sends the good choices to my head so I can do them, the good choices get plugged up behind the bad choices, and can't get to my head. That's when I have to make the bad choices! Otherwise I would make the good choices. They just get stuck behind the bad ones."  Dustin was flabbergasted, and he explained that there is no pipe, but that it is Jesus telling you to make the right choices. She insisted that there was indeed a pipe. She said saw it on the poster at the chiropractors office. "You know, on that poster with the picture of what it looks like inside your body..." I kid you not. That is all exactly what she said. No embellishment. We quickly explained that that "pipe" is the pipe which allows air to travel to your lungs... and the other pipe is how food gets to your stomach! SERIOUSLY?! WHO thinks that deep? Whatever happened to chasing butterflies and playing dress up?!!  It makes me stop and think-why don't I think that deep? Hmmmm?!! We have been laughing at the little grapes with legs ever since!