The Kalashthakam (कालाष्टकम्), also known as the Kala Bhairava Ashtakam, is a powerful eight-verse hymn dedicated to Kala Bhairava, the fierce manifestation of Lord Shiva as the lord of time (kala). The hymn is traditionally attributed to the great philosopher-saint Adi Shankaracharya, who composed it as part of his devotional works on Bhairava. The hymn's textual origin lies in the Bhairava Agamas, a corpus of Shaiva Tantric scriptures that detail the worship of Bhairava. The Kalashthakam is chanted primarily for protection from untimely death (akala-mrityu), removal of deep-seated fears, and liberation from the cycle of time and karma.
Each verse extols a different aspect of Kala Bhairava, describing his fierce iconography—black complexion, four to eight arms holding a trishula (trident), damaru (drum), sword, and skull, adorned with serpent ornaments, and riding a black dog. The dog, as mentioned in the Kala Bhairava Ashtakam itself, is his vahana (vehicle) and symbolizes dharma. The beej-akshara (seed syllable) associated with Kala Bhairava is 'Bhairavaya' or the mantra 'Om Kala Bhairavaya Namah', which is often repeated as a japa. The phoneme 'Bhai' is considered to invoke the protective and destructive energy of time.
It is also believed to grant mastery over time (kala-jnana) and to accelerate karmic purification. Recommended chanting context: the hymn is ideally recited during the night, especially on Ashtami (the eighth lunar day) or during the hour of midnight (nishita-kala), facing south. The count is typically 11, 21, or 108 repetitions, accompanied by offerings of black sesame seeds, mustard oil lamps, and flowers like blue lotuses. Cautions: due to the fierce nature of the deity, the mantra should be chanted with proper intention and after receiving initiation (diksha) from a qualified guru, as per Tantric tradition.
It is advised not to chant during periods of mourning or without maintaining ritual purity. The Kalashthakam remains a central hymn in the worship of Kala Bhairava across regions such as Varanasi, Maharashtra, Karnataka, Tamil Nadu, and Nepal, and is especially prominent during Kala Bhairava Jayanti and Ashtami festivals.
Salutations to Kala Bhairava, the lord of time.
The seed syllable 'Bhai' invokes the protective and destructive energy of time.