The road less traveled... might end at a cliff
Anything can be packaged as the most spiritual. I package "spiritual" as training in an unairconditioned warehouse converted into a dojo. You train hard and you tire fast in 95 degree weather and 100% humidity. I can't wait for the unspiritual fall season where it actually cools down and I can make it to the end of practice.
This bunk about Aikido being the "Most Spiritual" martial art is exactly that... bunk. There are just to many variations of Aikido for it to be considered most spiritual. It's like asking which Christian religion is the most spiritual? Answer: All of them: They all tell you to be nice to each other.
In my opinion, the Seven Prinicples of Bushido (Right Decision, Bravery, Compassion, Right Action, Truth, Honor, and Devotion) show a very spiritual template. I think that everyone across the board should endeavor to follows these guidelines. It's not easy to follow so it makes it worth practicing.
Therefore, as Bruce so hates to hear, PRACTICE! PRACTICE! PRACTICE! On and off the MAT!
BTW: Do we really need another book telling us how to be spiritual? Experience is the best teacher for that if you follow your heart.
Sean Moffatt
"I'm turning Japanese; I really think so."