Mantra & Yantra
“The meditation practices employed by both Mystical Qabalists and Tantrikas involve a coordinated use of mantra and yantra. Mantra are sequences of Divine Names having great intrinsic power to transform consciousness, and yantra are visualizations that correlate directly and specifically to the mantra. Anthropomorphic descriptions of the Lord hvhy are usually allusions to mysteries and to states and stations of consciousness.”
–Daniel Feldman, Qabalah: The Mystical Heritage of the Children of Abraham, 2001. Pg. 49.