Seventh heaven
Meaning
State of great happiness or bliss.
Usage
Used when someone is ecstatically joyful.
Origin & History
Origins and dates here are approximate summaries. Many idioms have disputed or unknown origins, and not every date has been checked against a historical dictionary, so treat specific dates and stories as a starting point rather than a citation.
From medieval cosmology that stacked heavens with the seventh being closest to divinity.
Used in English from the fourteenth century onward.