True . But the mystery gifting only works if they are friends for at least 10 days or 2 weeks , so no gifting other accounts except your own friends . <| sep |> 1 I keep seeing people say that Tibetan Buddhism takes parts from all Theravada , Mahayana , and Vajrayana . What parts of Tibetan Buddhism come from each one ? First , Theravada is not synonymous with Shravakayana the vehicle of disciples , in Tibetan nyenth thekpa , and it ' s best not to use them as equivalents . Although it ' s possible to classify texts and practices in Tibetan Buddhism as belonging to one of the three vehicles , in practice they are completely intertwined . For example , the only traditional lay Theravada practice is Uposatha fasting lay meditation is a 20 th century innovation , where lay people go to the temple and take the 8 precepts for a day . Tibetan Buddhism has an equivalent nyungn tradition . At heart this is a Shravakayana practice , because it ' s based around strict observance of discipline . But you take the 8 precepts from the bodhisattva Avalokiteshvara , and the ritual includes generating bodhicitta , meditation on emptiness , and the 7 limbed structure of the Aspiration of Samantabhadraall typical Mahayana features . In addition , the ritual includes selfgeneration as the deity , mantra recitation , and torma offeringall part of Vajrayana . Every Tibetan practice combines all three vehicles in this way . This also holds for the study of Buddhist philosopy . Shravakayana categories like the 4 noble truths , the 12 links , the 18 dhatus , the 2 truths , the 3 trainings , the 37 factors of awakening , the 4 paths of the noble sangha , etc . are studied based on Vasubandhu ' s Abhidharmakosha a strictly Shravakayana work and Asanga ' s Abhidharmasamuccaya which includes Mahayana elements . But these categories are also continually encorporated and reinterpreted in Mahayana and Vajrayana . Similarly , Mahayana concepts like bodhicitta , the 2 kinds of emptiness , the 3 natures , the 2 accumulations , the 6 or 10 perfections , the 10 bodhisattva stages , the 3 kayas , etc . are also included and reinterpreted in Vajrayana . 2 Is there a sect in Mahayana Buddhism that has traditional monastery practices like in Theravada ? As rBBBalls mentioned , all Tibetan monks are ordained in the Mulasarvastivada lineage . As in Theravada , there are no fully ordained nuns , and the question of importing the Dharmaguptaka ordination lineage for nuns from East Asia has met with the same controversies . In practice , each monastery ' s tsayig code of conduct is more important than the Mulasarvastivada Pratimokshasutra . Few Tibetan monasteries require their monks to permanently fast after noon , for example , and Tibetan monks are also more relaxed about handling money and general comportment . But Tibetan monasteries do observe the traditional vinaya calendar with respect to uposatha days , the rains retreat , etc . Finally , there exists a huge literature on the Three Vows domsum . This sets out all the precepts of the 7 classes of the sangha Shravakayana , the bodhisattva vows Mahayana , and tantric samaya Vajrayana that a practitioner can take on the path , and what to do when they conflict .