Liber HHH (sub figura CCCXLI) is a Thelemic magical instruction manual attributed to Aleister Crowley, belonging to the Western esoteric tradition and classified as a "Class D" publication — meaning it prescribes mandatory ritual practices. The text is divided into three sequential meditative-yogic exercises (MMM, AAA, SSS), each building toward increasingly advanced states of consciousness and spiritual transformation. MMM guides the practitioner through a series of visualizations — storm, lightning, a cone of light, serpent bites healed by eagles — culminating in aspiration toward the Holy Guardian Angel, the central goal of Thelemic practice. AAA is a death-and-resurrection meditation structured on Egyptian mythology, in which the practitioner imaginatively undergoes dying, embalming, and burial before experiencing a Osirian rebirth as a solar disk rising in the east. SSS is the most physically demanding section, drawing on Kundalini-style tantra: it directs the practitioner to awaken energy along the spine (identified as a serpent/lingam) toward the brain (identified as a yoni/womb of Isis), sustaining extreme tension until involuntary arousal of the light current occurs. A distinctive feature is the text's frank warnings against Samadhi (absorption states) as a dangerous distraction rather than a goal, inverting the typical Hindu-Buddhist framing; it also matter-of-factly acknowledges that the final practice carries a risk of death.