She was invoked in one or another of her nine forms, "Navadurga", or as "Bhadrakali". The Tamil tradition also associates her with "Saraswati" or "Vāc", as also with "Srī" and "Lakshmi". Thus in Durga the devotee visualised the triple aspects of power, beneficence and wisdom. In addition, many southern temples included shrines to the "Sapta Matrika" and "from the earliest period the South had a rich tradition of the cult of the village mothers, concerned with the facts of daily life." The dualistic metaphysics of Tantric traditions indicates the influence of Samkhya on Tantra. Dasgupta speculates that the Tantric image of a wild Kali standing on a slumbering Shiva was inspired from the Samkhyan conception of Prakriti as a dynamic agent and Purusha as a passive witness. Shakta philosophy also elaborated Samkhya theory on the phases of cosmic evolution ("tattvas") by expanding the number of phases from 25 to 36 tattvas. "It is worthy of note that this scheme of "tattvas" enables the Shakta philosophy to solve the conundrum ... as to how the changeless "Brahman" becomes the changing universe, and how the One can become the Many. In the Shakta cosmogony the central idea is that Shakti issues out of the Absolute and is not different from "Brahman", being [rather] the kinetic aspect of Brahman." In most schools of Shaktism, the "Tantras" – a large genre of ritual manuals dating from as early as the 7th century CE and as late as the 19th century – are central scriptures. The Tantras "devised two main "margas" (paths of "sadhana") to reach the same goal":   The proper path is generally determined by the guru based upon a given devotee's personal nature – i.e., as a tamasic "pasu" (i.e., an ordinary person not particularly given to spiritual pursuits, and mainly preoccupied with worldly matters); a rajasic "vira" (an active and vigorous spiritual seeker, qualified to "heroically" engage more intensive forms of "sadhana"); or a sattvic "divya" (a holy-natured person, having already achieved an extremely high level of spiritual maturity) – and various other factors.