[Por_sha911]

Originally Posted by speeder

That's a good question. He was Jewish and definitely had a deep faith, (I just assumed)...so maybe that was associated with his upbringing but it was just who he was.

During the formation of the series, Nimoy worked with Roddenberry to create a unique identity of Spock. Here is the info I found years ago about "live long and prosper"

The Vulcan greeting is based upon a blessing gesture used by the kohanim (koe-hah-NEEM) during the worship service. The kohanim are the genealogical descendants of the Jewish priests who served in the Jerusalem Temple. Modern Jews no longer have priests leading services as in ancient times, nor do we have animal sacrifices anymore. (Yes, people really do ask about that!) The sacrificial system ended with the destruction of the Temple by the Romans in the year 70. C.E. However, a remnant of the Temple service lives on in the “kohane blessing” ritual (duchenen in Yiddish) that is performed on certain holy days.

[Hebrew letter SHIN][hand and SHIN letter]The actual blessing is done with both arms held horizontally in front, at shoulder level, with hands touching, to form the Hebrew letter “shin.” This stands for the Hebrew word for “Shaddai”, meaning “Almighty [God].” Nimoy modified this gesture into one hand held upright, making it more like a salute. So, technically, the Vulcan greeting is not the same thing as the ceremonial Jewish blessing. Still, the resemblance is close enough to evoke instant recognition among knowledgeable Jews.

During the synagogue service, the worshippers are not supposed to look at the kohanim while the blessing is being given. The reason for this is to focus our attention on the words of the prayer itself, rather than on the personalities of the kohanim. The kohanim are merely the channels, not the source, of the blessing, which comes from God. Unfortunately, all sorts of silly superstitions have arisen about this ritual, such as “Don’t look at the kohanim, or you’ll go blind!” and other nonsense. The real reason is simply to focus on receiving blessings directly from God, not from human beings.

https://mrmikey.tumblr.com/post/587482364/the-jewish-origin-of-the-vulcan-salute-by-rabbi