As the five arrows are strongly bound this shall symbolize the complete union of the nations. thus are the five nations united completely and enfolded together, united into one head, one body and one mind. therefore they shall labor, legislate and council together for the interest of future generations.
what is the connotation of the word “enfolded”?
a. to surround and overtake
b. a feeling of conformity
c. a sense of comfort and security
d. to keep within its limits

C.a sense of comfort and security

Explanation:

By definition, enfolded means "surround; envelop" or "hold or clasp (someone) lovingly in one's arms."

When you consider the message of the whole excerpt, and how it deals with the idea of strength and unity required of these five countries to achieve their objective as "one head, one body and one mind", you feel strength from union. The certainty that the job will be done with the 5 acting as one.

a pirate walks into a bar with a steering wheel sticking out of his pants.

bartender: isn't that uncomfortable?

pirate: arrgh! it's drivin' me nuts!