MA 2009Warning!
This page contains information regarding Star Trek: Discovery, and thus may contain spoilers.

A crypt was a type of subterranean chamber.

In the late 2250s, after Spock fled Starbase 5, he ended up on Vulcan, where his mother sought to him in a sacred crypt containing katra stones, so any outside telepathic link would be prevented. (DIS: "Light and Shadows")

The crypt was reached from Sarek's ShiKahr house by shuttle, suggesting some distance between the two locations.