I understand that this is a kind of a set phrase to express the hope that his spirit has found peace after death, but I don't understand why subject-auxiliary inversion occurs, and the "May" comes first in this example.
The same sentence structure can be seen in some other examples too like the below ones.
- May the Force be with you.
- May God bless you!
Is there any grammatical rule? Are there any other examples that follow the same sentence construction?