Mantraśodhana, Dīkṣā-krama, Guru-Pādukā, Ajapā-Haṃsa, and Ṣaṭcakra-Kuṇḍalinī Sādhana
अरिसिद्धोऽरिसाध्यश्च तत्सुसिद्धश्च तद्रिपुः । रिद्धसिद्धो यथोक्तेन द्विगुणात्सिद्धिसाध्यकः ॥ १२ ॥
arisiddho'risādhyaśca tatsusiddhaśca tadripuḥ | riddhasiddho yathoktena dviguṇātsiddhisādhyakaḥ || 12 ||
Одно именуется «ари-сиддха», другое — «ари-садхья»; также есть «тат-су-сиддха» и соответствующий ему «враг». И далее, как сказано прежде, «риддха-сиддха» — тот, кто достигает успеха в удвоенной (усиленной) мере.
Sanatkumara (teaching Narada in the technical/Vedanga-oriented section)
Vrata: none
Primary Rasa: shanta
Secondary Rasa: bhayanaka
It frames ‘siddhi’ (successful accomplishment) as a graded, classifiable outcome—reminding the seeker that results depend on defined conditions and oppositions, not merely wish or emotion.
Indirectly: it teaches discernment about outcomes and obstacles (‘ripu’/opposition). In bhakti practice, recognizing opposing tendencies and strengthening the means can lead to ‘susiddhi’—well-established steadiness in devotion.
A technical taxonomy used in applied disciplines (especially Jyotiṣa-style outcome classification): siddha/sādhya categories, their opposing counterparts, and the idea of ‘dviguṇa’ (twofold) enhancement in accomplishing a result.