Chasidut su Proverbi 20:32

“The candle of God is the human soul” (Prov. 20:27). Just as in a candle the flame seeks to leap ever higher, the nefesh Elokis seeks to leap out of the body into the embrace of the Heavens. The wick tethers the flame, and the body tethers the soul, keeping it grounded and constrained.¹⁰⁸Tanya, Chapter 16. See further Chasidic Masters, pg. 33.

225 And the third explanation, is one that encompasses all of the worlds, above and below, that through the lower ones doing what is appropriate they add light to the worlds above, in the secret of "give strength to E-lohim" (Psalms 68:35), which is the face of the Upper Menorah that receives the light from above, and then makes that light flow to the person called candle (NeR, Nefesh Ruach) as it is written "the candle of Ad-nai is the soul of a person" (Prov, 20:27)