Problem of being in Buddhist philosophy

In this paper considered the interpretation of the category of «being» in the main areas of Buddhist philosophy. The paper analyzes the ontological principles of the three directions: Sarvastivada, with its philosophical motto: «sarvam asti», stating that the only truly real dharma, Yogacara and its subjective idealist absolutization role of consciousness in the process of perception, with its doctrine of Madhyamaka that the true reality is inexpressible and any description of reality is an illusion, it's not real.