Mark O’Connell spends one day sitting in a forest, doing nothing:

At some point it came to my attention that I was no longer bored, and that I had not been bored for some time. This is not to say that I was in a state of high mental stimulation, but that the hours of inactivity had induced in me a kind of meditative stupor, whereby I was receptive to the information of the environment – to the ceaseless clamour of the river, the chattering of the birds overhead, the urgent whisperings of the leaves in the breeze, the modulations of temperature and light – but uninclined to think much about this information, or anything else. I had, I realised, become attuned to the frequencies of the forest. I had found the secret level.