I worked with a guy who was a Tae-Kwan-Do champ at the hot springs resort I used to live/work at. He was half British, half Malaysian and had studied extensively in Korea and Japan. He was about middle weight class. I don't doubt his creds. because I saw the guy at our weekly dances. Very hot dancer and he would get some room to himself now and then and show off these round-house head kicks that I would hate to have to fend off.
He was quite mellow, never pushed his skills or prowess in any way. There were times, I swear, I could see a sort of light around him. The ladies must have seen it too. He reminded me of a description of Marlon Brando given by an ex-wife of his, the one from Tahiti or thereabouts:
"Women are attracted to him like flies to $h!t."

I think there might have been a bit of ill will involved in that one.
I've experienced heightened chi myself a few times from yoga and clean living, but unfortunately, I'm a bit of a lazy backslider.
Time to turn over a new leaf.