Superior to Mahat is the Prakriti. Superior to the Prakriti is Brahma. There is nothing superior to Brahma. That is the highest limit of goodness and the highest end.
महतः परमव्यक्तमव्यक्तात् परतोऽमृतम्। अमृतान्न परं किंचित् सा काष्ठा सा परा गतिः॥