The writer is thinking it could be an interesting experiment to completely avoid using the personal pronoun, and also to regard oneself habitually in the 3rd person. Not as a pretension, but as a spiritual exercise, which, after all, reflects reality at least as well as the 1st person mode to which we are normally accustomed.
It's a difficult exercise. In writing the first paragraph, the personal pronoun crept in: it was the first word written. Formal writing also shuns the first person, so at least there is a convention to fall back on. It would be even more helpful if there was some sort of alarm that would go off every time the personal pronoun is used. But the word "I" is itself rather incongruous, and a little cumbersome to write on a tablet keyboard.