- "Right now, I can't say I know what they want from me. But I'm willing to take a leap of faith, and believe that they're guiding me. I'm asking you to take that leap with me."
Leap of faith was a term used to describe one's decision to believe in something that was empirically unknowable at the time, then act on said belief by making a choice that seemed irrational otherwise/
Starfleet officers were trained to act scientifically and rationally based on learned knowledge and facts of the situation. Starfleet admirals generally disliked religious inclinations as an excuse to act. (DS9: "Rapture")
Data took a leap of faith in order to believe that he could become Human, becoming something other than he was. (TNG: "Rightful Heir") Benjamin Sisko entrusted the Bajoran Prophets to save his son, even as they were trying to kill the Pah-wraith that was inhabiting Jake's body. (DS9: "The Reckoning") Janeway ignored her first officer and chief medical officer advice to wait for a scientific way to save Kes, and she took a leap of faith that not only would Kes be saved, but that she herself would not die. (VOY: "Sacred Ground") In the anti-time past, Jean-Luc Picard asked his crew to take a leap of faith and trust him, when he ordered the USS Enterprise-D into a temporal anomaly discovered in the Devron system. (TNG: "All Good Things...")