This instability also led to the decline of the discipline of the sangha. Sinhala kings tried various measures to stem this decline, such as purging the sangha of undisciplined monks and the introduction of the post of "sangharaja" (chief of the sangha) under the Gampola kings. Regarding sectarian differences, these had mostly been worked out at this point in time, with the adoption of some Mahayana (as well as Hindu) deities and the rituals of the other sects into the Theravada orthodoy. The cult of the tooth relic retained its importance for example. In spite of all the instability, Sri Lanka was seen by Buddhists in Southeast Asia as a new holy land, since it contained relics of the Buddha which were accessible, in contrast to India which had seen the disappearance of Buddhism and the Muslim invasions.