_Odium theologicum_ is often bitterest between the sects which are most nearly related and accordingly we find that the Tengalais and Vadagalais frequently quarrel. They use the same temples but in many places both claim the exclusive right to recite the hymns of the Âr̤vârs. The chief difference in their recitation lies in the opening verse in which each party celebrates the names of its special teachers, and disputes as to the legality of a particular verse in a particular shrine sometimes give rise to free fights and subsequent lawsuits. The two schools reckon the apostolic succession differently and appear to have separated in the thirteenth century, in which they were represented by Piḷḷai Lokâcârya and Vedânta Desika[591] respectively. The Tengalai, of which the first-named teacher was the practical founder, must be regarded as innovators, for in their use of Tamil as the language of religion they do not follow the example of Râmânuja. Lokâcârya teaches that the grace of God is irresistible and should be met not merely by active faith, but by self-surrender,[592] and entire submission to the guidance of the spiritual teacher. He was the author of eighteen works called Rahasyas or secrets[593] but though he appears to have been the first to formulate the Tengalai doctrines, Manavala Mahâmuni (1370-1443 A.D.) is regarded by the sect as its chief saint. His images and pictures are frequent in south India and he wrote numerous commentaries and poems. Vedânta Desika, the founder of the Vadagalai, was a native of Conjeevaram but spent much of his life at Śrîrangam. He was a voluminous author and composed _inter alia_ an allegorical play in ten acts, portraying the liberation of the soul under the auspices of King Viveka (discrimination) and Queen Sumati (Wisdom). At the present day the two sects recognize as their respective heads two Âcâryas who are married, whereas all Smârta Âcâryas are celibates.[594] The Tengalai Âcârya resides near Tinnevelly, the Vadagalai in the district of Kurnool. They both make periodical visitations in their districts and have considerable ecclesiastical power. In the south Śrîrangam near Trichinopoly is their principal shrine: in the north Melucote in the Seringapatam district is esteemed very sacred. 5