Definition of empyrean:
the region of pure light and fire; the highest heaven, where the pure element of fire was supposed by the ancients to exist: the same as the ether
, the ninth heaven according to ancient astronomy
empyreal; of the sky
or the heaven
s; celestially refined
"1667: John Dryden, Annus Mirabilis - In th'empyrean heaven, the bless'd abode, / The Thrones and the Dominions prostrate lie, / Not daring to behold their angry God."