Another partial answer that builds on previous answers by Bass and Barker and on Xenocacia's observarion. I might well be heading into the wrong direction here. It has already been found that ... >! ... the poem consists of the names of some of the 64 hexagrams in I Ching. Xenocacia has found that some of the letters in the image are slightly lighter. These letters spell _Morse_. Now, ... >! ... the hexagrams have numbers, but the also consist of six horizontal bars. These bars are either broken (Yin) or unbroken (Yang). The hexagrams in the poem are: >! >!   ||||¦|   13   Fellowship with men >!   ¦||¦¦|   17   Following >!   ¦¦¦¦¦¦    2   Receptive Earth >!   ||¦|¦|   37   Family / Clan >!   ¦|¦¦¦|    3   Difficulty at the beginning >!   ¦|¦¦|¦   29   Abysmal water >!   |¦¦¦|¦    4   Youthful folly >!   |¦|¦¦¦   35   Progress >!   ¦¦¦¦¦¦    2   Receptive Earth >!   |||¦|¦    6   Conflict >!   ¦|¦¦||   60   Limitation >!   ¦|||¦|   49   Revolution >!   ||¦|||    9   The Taming Power of the Small >!   |¦¦|||   26   The Taming Power of the Great >!   |¦¦|¦|   22   Grace >!   |¦||¦|   30   Clinging fire >!   ¦¦¦¦||   19   Approach >!   ¦|||||   43   Breakthrough >!   ||¦|¦|   37   Family / Clan >! >! (The hexagrams are shown sideways here, tilted by 90° to the left.) Unfortunately, ... >! ... I haven't found a way to get a sensible Morse message from these hexagrams. An obvious way would be to read them top-down (or left to right in the table above), where an unbroken bar is a dash and a broken bar is two dots*. >! >! Other possible readings are to substitute an unbroken bar by just one dot or to place all hexagrams next to each other and then read line-wise. None of that has given me any useful readings, but that may be owed to the difficulty of reverse-engineering a stream of unseparated Morse signals. >! >! I think that the numbers scribbled in the margin — 4, 3, 3, 3, 2, 1, ... — might refer to the length of either the first words or the first Morse-encoded letters. >! >! >! >! \__\__\__\__ >! *) When I do a web search for "hexagrams morse", one of the first results is a preview of _The Book That Proves Time Travel Happens_, which suggests just that and shows that the clinging Fire reads _tuna_ and the Family decodes to _mix_.