The more person is absorbed in their inner world…

Page 29. The more person is absorbed in their inner world of sites, sounds, and feelings, the less here she will be able to pay attention to the external world. There is a story of a famous chess player in an international tournament, who is so engrossed in the position he was seeing in his mind, Eye that he had two full dinners in one evening. He had completely forgotten eating the first. Being lost and thought is a very apt description. People experiencing strong inner emotions are also less vulnerable to external pain

— from The Mind in the Cockpit · NLP by O'Connor and Seymour

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