Blood is a the network, and if we analyze it as a network we can better understand how blood not only delivers the groceries and hauls out the trash it also supports our consciousness, and carries instructions which regulate the function of every organ system in the body etc etc.

Blood components not just signals, though they are that too, a blood factor shares properties with the Sumerian messages from the gods, Nam Shub.

1) A Nam Shub and a protein blood factor are both a description of themselves (reflexive) and a statement of their purpose, which is a command or instruction that must be obeyed.

https://www.jacobsm.com/deoxy/deoxy.org/alephnull/nam-shub.htm