Immured in Heaven — Stage Play

Immured in Heaven! 1
What a Cell!
Let every Bondage be,
Thou sweetest of the Universe,
Like that which ravished thee!
(F.1628/J.1594)
[1] Heaven:: the covering over a stage (OED 9).
[2] Cell:: a small enclosure, a small universe that the stage play represents.
[3] Bondage:: the binding of actors in performing their roles.
[4] Universe:: all the world is a stage.
[5] ravished thee:: rejoiced the audience.