Shankara's organizational genius matched his philosophical brilliance. He established four mathas (monasteries) at India's four compass points, each preserving one Veda, associated with a specific Mahavakya (great Upanishadic statement), and headed by one of his four principal disciples. Sringeri Sharada Peetham (South, Karnataka) focuses on Yajur Veda and "Aham Brahmasmi" (I am Brahman), headed by Sureshwaracharya. Dwaraka Sharada Peeth (West, Gujarat) preserves Sama Veda and "Tat Tvam Asi" (Thou art That), headed by Hastamalakacharya. Govardhan Matha (East, Puri) maintains Rig Veda and "Prajnanam Brahma" (Consciousness is Brahman), headed by Padmapadacharya. Jyotir Matha (North, Badrinath) guards Atharva Veda and "Ayam Atma Brahma" (This Self is Brahman), headed by Totakacharya. These mathas continue today, providing unbroken lineage of Advaitic teaching. The Sringeri Matha particularly maintains an uninterrupted succession of 36 Jagadgurus since Shankara's time.