Heaven is a mythological paradise in many cultures. The term can also by synonymous with the sky.
In 2366, Geordi La Forge stated that he hoped the non-corporeal Koinonians invading the ship's systems wouldn't "blow us to Kingdom Come while (they're) figuring out how to blow us to Kingdom Come." (TNG: "The Bonding")
In the 22nd century, Kai Taluno of Bajor claimed his ship was "almost swallowed by the heavens" near the Denorios belt. In fact, he had witnessed the opening of the Bajoran wormhole. (DS9: "Emissary")