The Soul unto itself — Soulmate

The Soul unto itself 1
Is an imperial friend-
Or the most agonizing Spy-
An Enemy-could send-

Secure against its own-5
No treason it can fear-
Itself-its Sovereign-of itself
The Soul should stand in Awe-
(F.579/J.683)
[1, 2] Soul, an imperial friend:: a soulmate.
[5] Secure, own:: to prevent a soul mate to own your secret.
[6] No treason, fear:: a soulmate may betray without fear.
[7] Sovreign:: it esteems itself the most.
[8] Soul should stand:: one's own soul should resist soulmate.