Mahāyāna sūtras are also generally regarded by the Mahāyāna tradition as being more profound than the śrāvaka texts as well as generating more spiritual merit and benefit. Thus, they are seen as superior and more virtuous to non-Mahāyāna sutras. The Mahāyāna sūtras are traditionally considered by Mahāyāna Buddhists to be the word of the Buddha. Mahāyāna Buddhists explained the emergence of these new texts by arguing that they had been transmitted in secret, via lineages of supernatural beings (such as the nagas) until people were ready to hear them, or by stating that they had been revealed directly through visions and meditative experiences to a select few.