The Understanding has its refuge in Darkness; Darkness has Ignorance for its refuge; Rajas is founded upon the quality of goodness and quality of Goodness is attached to the Soul.
बुद्धिं तमसि सक्तां तमो रजसि संश्रितम्। रजः सत्त्वे तथा सक्तं सत्त्वं सक्तं तथाऽऽत्मनि॥