Hanumān-mantra-kathana: Mantra-bheda, Nyāsa, Yantra, and Prayoga
एवं सिद्धे मनौ मंत्री साधयेदात्मनो हितम् । अस्यापि मंत्रवर्यस्य रहस्यं साधनं तु वै ॥ १४९ ॥
evaṃ siddhe manau maṃtrī sādhayedātmano hitam | asyāpi maṃtravaryasya rahasyaṃ sādhanaṃ tu vai || 149 ||
Apabila mantra itu telah disempurnakan demikian, pengamal mantra hendaklah menunaikan apa yang membawa kebaikan bagi dirinya. Sesungguhnya, bagi mantra yang unggul ini pun ada suatu kaedah sādhana yang rahsia.
Sanatkumara (teaching Narada in the Vedanga/Mantra context)
Vrata: none
Primary Rasa: shanta
Secondary Rasa: adbhuta
It states the proper sequence: first attain mantra-siddhi, then employ that power for one’s true welfare, guided by an esoteric (rahasya) discipline rather than casual recitation.
By emphasizing disciplined practice and inner intention, it supports bhakti-oriented upasana: the mantra is perfected through devoted sadhana, and its fruit is directed toward genuine spiritual good rather than mere display.
It highlights mantra-vidhi and sadhana-krama (procedural discipline): the idea of mantra-siddhi, qualified application of mantra, and the existence of rahasya-instructions typical of technical Vedic practice.