Geo Bell 26/12/2015
In my rookie days, following a lucid dream I would often experience a false awakening, start writing my dreams down on paper – only to wake up for real. The experience of writing words and sentences, in some cases, was very fluent, convincing and accurate. As many oneironauts will attest, writing and reading in dreams is very difficult, but not strictly impossible.
The reason for this lies in the parts of the brain which are most active at the time. In non-lucid dreams, the centres of the brain which are deeply involved in processing detailed information are least active. This is what makes reading text so difficult. These areas of the brain aren't always so inactive whilst you're dreaming. For example, in Wake Initiated Lucid Dreams, the level of cognition is generally much higher than in Dream Induced Lucid Dreams. This is because the parts of the brain involved in language processing, linear logical thinking and other things (often loosely referred to as the “left-brain”) are less active in DILDs, after a period of inactivity during Non-REM sleep, and non-lucid REM sleep.
The take-home message is this – whilst reading a short piece of text in your dreams isn't impossible, it's very difficult to coherently read words more than once, as text is incredibly unstable. Whilst it would be nice to read whole pieces of literature in your lucid dreams, you'll have to leave your reading for your waking time.