Proverbs 20:27 says, “The soul of man is the candle of the Lord.”
(Orthodox) Jews (myself included) have the habit of swaying/rocking the body during prayer (both seated & standing). This has been documented since ancient times. In the Zohar (which is one of the main texts of Kabbalah, see tinyurl.com/6ydnt, scroll down to the section entitled “Jewish mysticism”), Rabbi Yossi asks Rabbi Abba: “Why is it that among all nations the Jews alone have the habit of swaying the body when they study the Torah?” Rabbi Abba answers: “It illustrates the excellence of their souls. Proverbs 20:27 refers to them: 'The soul of man is the candle of the Lord ’ The light of that candle flickers and wavers in unison with the light of the Torah.” (I’ve culled some of the above from The Jewish Encyclopedia.)
As per the foregoing, our swaying bodies, while we are at prayer, are like the dancing & flickering flame because, “The soul of man is the candle of the Lord.”
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