- I had from the beginning espoused a non-religious view of Buddhism. About 20 years in, my teacher stated that Buddhism was definitely religious, and that devotional practices like pujas were non-optional. I didn't like it, but if you take on a teacher, it behoves you to at least try to go along with the teaching - which I did.

- I learned some things about Tibetan history that were the opposite of my earlier, naive beliefs. Pre-communist Tibet was not Shangri-La.

- While I never practiced tantra, the tradition was tantric; I eventually learned some important things about tantra that I found unacceptably obnoxious. I can't go into detail, because I don't want to undermine anyone else's commitment to tantra.

- The group that I had been involved with gradually changed, I became an outsider, and things got difficult. Friends in the group cut me off.

- The behaviour of Buddhist nationalists in places like Myanmar and Srilanka towards non-Buddhist minorities appalled me - this was the tipping point.

- I did my back in through long sitting sessions. The amount of my life that I had spent sitting was beginning to look like heavy expenditure for no obvious gain (I wasn't making much progress).

These are my reasons; they don't apply to anyone else, and I don't deprecate Buddhism or Buddhists. I just gradually came to see that I'm no longer one of them.

There is a great deal that I integrated from Buddhism. It remains the basis for my morality, and my world-view is still largely based on Buddhist thought. But I no longer do any kind of formal practice, and I don't identify as a Buddhist.