I kind of heard a similar story where an indian guru unsuccessfully tried acid.
His goal was to understand what the effects of the psychedelic was. One of his students (an english psychonaut who got kicked out of Oxford University for subtance abuse) brought him a considerable amount for him to try out. He wanted to know the guru's opinion on the matter.
The guru never had taken any drugs before, but still, his perception didn't alter at all after ingestion.
My theorie is that you, like the guru, are too high on life and meditation.
You're not completely naked if you still wear socks