For a 60-year-old storytelling universe, it's nearly impossible to point to a single story that is its most influential and important. However, Star Trek: Deep Space Nine's Season 6 episode "Far Beyond the Stars" is arguably the entire saga's most important hour. Benny Russell, the character played by actor and episode director Avery Brooks, is a man capable of dreaming up a future his peers cannot comprehend. In a way, Deep Space Nine used "Far Beyond the Stars" to tell a story about Star Trek itself. Though, there are some major caveats.
Source：https://www.cbr.com/star-trek-deep-space-nine-far-beyond-the-stars/
