The central thesis is simple: By completing a small task first thing in the morning, you start your day with a sense of accomplishment and discipline. It reinforces the idea that the little things in life matter.
It looks like you are referring to the famous speech (and later book) by Admiral William H. McRaven. hazte la cama pdf
If you are looking for a summary or the key points from the PDF (based on his UT Austin commencement speech), here is a breakdown of why it is considered a "solid post" or a solid piece of advice. The central thesis is simple: By completing a