 Brahma is riding on his mount, the hamsa.The four symbols held by Brahma in his arms (the rosary, "Kamandalu", book and the sacrificial implement kusha grass) represent time, the causal waters from which the universe emerged, knowledge and the system of sacrifices to be adopted for sustenance of various life-forms in the universe.Gayatri's image sits along with Brahma's in centre to his left.