The mind is a processor, not a hard drive.
The Neuroscience: Your brain’s working memory—housed primarily in the prefrontal cortex—is designed to process incoming data, not store it indefinitely. It has a severely limited capacity. When you attempt to hold daily spiritual and emotional coordinates purely in your working memory, you create massive cognitive friction. This forces the brain into "survival mode," where it drops nuanced data (like profound lessons or subtle lies) to conserve energy. By writing the data down, you mechanically offload this burden. Externalisation transfers the information from the volatile "processor" to a permanent physical ledger, freeing the prefrontal cortex to remain regulated and present.