For purpose of creation Brahman divided itself into Prakrti, the combination of three gunas, the word also meaning before creation or primary factor/female form for creation, and representing matter, and Purusa (spirit), the male factor that has no tanmatras (subtle elements) attached to it.
Devi Parashakthi is the mother of Kundalini Shakthi, a minute part of her has manifested as Purusha (Shiva) and Prakrti (Shakthi), which together has materialized into various universes (multiverse) as living and non-living entities through maya (illusion) Shakthi.
Shatapatha Brahmana defines Sutram as the sacred thread (SB XII.ii.3), the sacred thread belonging to the first-class Brahmins (SB V.x.16), the power to act (SB XI.iii.37), the sutra-tattva (SB XI.xxviii.16), the mahat-tattva distinguished by the power of action (SB XI.ix.19), the function of Pradhana or the subtle cause of material nature (SB XI.xii.19), or the first transformation of nature (Prakrti), endowed with the potency of activity (SB XI.xxiv.6).