Re: Healing power of Aikido
"Healing the sick" is a pretty vague concept. What kind of sick? Aikido obviously couldn't cure Ueshiba's cancer. It's not realistic to expect any discipline to be a panacea.
However, it's kinda common sense to recognize that a physical-mental discipline that does not cause frequent injury and irreversible physical damage, and which conditions and strengthens the body, improves circulation and oxygenation, reduces anxiety and emotional stress, increases the number of functional brain cells, etc., is going to be good for overall health and wellbeing. An enhanced immune system through low-impact exercise would certainly be a deterrent for many illnesses.
You know what they say about an ounce of prevention being worth more than a pound of cure...
But, I do believe it's important to be aware of the limits here when it comes to being a cure or healing craft that encompasses all human ills. That's expecting way too much of any discipline, including Western- and Eastern Medicine, and everthing in between.