Re: What is a benefit specifically of Aikido
Aikido offers nothing that can't be gotten elsewhere
Or in other words:
"It's not what Aikido is doing for you, it is what you are doing to yourself via Aikido training".
Another person could find he would get the same conceptual contributions to himself through other means, be it meditation, religion, another M.A., another sport or occupation or a combination of all above.
Further, we can not be sure of any contribution to our "conceptual world", only to the physical skills. After all, growing up also changes us as well as any experience we get in life. Aikido is just another way of getting a certain type of focused experiences.