Mantra anushthana refers to the disciplined, rule-bound practice of mantra repetition over a fixed period to achieve a specific siddhi (perfection). The term 'anushthana' literally means 'standing after' or 'following', implying strict adherence to prescribed regulations. According to the *Mantra Mahodadhi* (a key text on mantra shastra), anushthana involves three essential components: nyasa (ritual placement of mantras on the body), japa (repetition), and homa (fire offerings). The *Shaktisangama Tantra* further details that anushthana must be performed with a specific number of repetitions—often 100,000 or 1,000,000—over a period of 41 days, during which the practitioner observes celibacy, eats sattvic food, and maintains mental focus.
The mantras used for anushthana are typically beejaksharas (seed syllables) such as 'Om', 'Hreem', 'Kleem', or 'Shreem', each associated with a particular deity. For example, the *Devi Mahatmya* prescribes the Navarna Mantra ('Om Aim Hreem Kleem Chamundaye Viche') for anushthana to the Goddess. The phonetics of these bijas are considered crucial: 'Hreem' combines the fire (ra) and the sun (ha) with the creative power (eem), invoking transformation. The purpose of anushthana is to purify the mind, remove obstacles, and attain the desired result—be it material prosperity, spiritual liberation, or specific powers.
The *Mantra-Yoga-Samhita* states that anushthana must be performed at an auspicious time, such as during the bright fortnight or on a full moon, and in a secluded place. Cautions include the necessity of a guru's guidance, as improper practice can lead to negative effects. The practitioner must also perform purashcharana (preliminary rites) and conclude with udyapana (closing ceremony). The *Lalita Sahasranama* emphasizes that anushthana without devotion is fruitless.
Thus, the mantra anushthana mantra is not a single chant but a category of mantras used within the structured framework of ritual observance, ensuring the successful completion of the practice and the attainment of siddhi.
Mantra anushthana is a disciplined practice of mantra repetition with strict rules to achieve siddhi.