"And my hand vibrated for about three hours afterward."

"I went on Tozan (pilgrimage) in 1981 and met Daisaku Ikeda and shook his hand. I could feel amazing energy vibrating and my hand "vibrated" for about three hours afterwords. I believe it was because of the many daimoku he chanted. And as an American I shook many hands in Japan I know many people talk about him (And behind his back also) but it was an amazing experience..." -- Steve Dzama

https://blogs.chapman.edu/students/2014/09/26/10-things-i-love-about-practicing-buddhism-with-the-sgi/