It went far beyond what some of the other commenters are suggesting. It wasn't merely a conscious realisation that the sensation of pain could be reframed as me

It went far beyond what some of the other commenters are suggesting. It wasn't merely a conscious realisation that the sensation of pain could be reframed as mere sensation; it was a deep reconceptualization of the pain as 'vibrations'. (I realise how kooky this sounds, which is why I didn't go into details in the above comment.) The pain of sitting for 10 hours a day was actually just a feeling of... energy? I struggle to find a fitting word. A fly landing on my face was no longer annoying; it was a blissful reminder to stay in the present moment. I hope that answers your question.