Ruaḥ (Kabbalah)

This is the name for the second of the five levels (and corresponding light) of the soul: nefesh, ruaḥ, neshama, ḥaya, and yeḥida. These five levels of the soul correspond to the five primary sefirot, Keter, Ḥokhma, Bina, Tiferet, and Malkhut, as well as the five worlds, Adam Kadmon, Atzilut, Beria, Yetzira, and Asiya. The ruaḥ level of the soul corresponds to and is the light of the level of Tiferet and the world of Yetzira. A person attains the illumination of this aspect of the soul after first attaining the illumination of the lowest part, which is the nefesh.