Vaśīkaraṇa (वशीकरण) Refers back to the “energy to regulate and subjugate”, according to sources like the Kulakaulinīmata and Kumārikākhaṇḍa of your Manthānabhairavatantra.—Although the text will not say so, it is obvious the pink Nityā is usually a method of Kāmeśvarī. Amongst the best explanations why yoni vashikkarem is still common https://www.youtube.com/shorts/uTDAtp7YWmE