Does the Asian concept of dantian make any sense?

Dantian is related to the flow of qi in Asian martial arts, traditional medicine and other areas. There are dantians in three parts of the body – head, chest and abdomen.

I am not very knowledgeable about this, nor do I want to be, but I find the concept of abdominal dantian to be of interest. It is located about two inches below the navel. I learned about it in a class I took on aikido. Before dismissing this as nonsense, try the following exercises, imagining your energy as flowing outward from your dantian:

1. Throw a punch.
2. Sing a song
3. Do a dance step
4. Take a few calming breaths

Do you feel it? After I took the aikido class, my singing and dancing abilities went from horrible to barely acceptable.