The Sanskrit name for a particular state of meditation the corresponding Pāli of which is appānaka or appāṇaka. An alternate Buddhist Sanskrit term is āspharaṇaka. This meditation is described most famously in the Mahāsaccaka Sūtta of the Majjhima Nikāya where it is explained as a type of meditation in which the breathing is fully stopped, which then prompts the Bodhisattva to experience a loud and unpleasant sound. He then abandons the meditation. Edgerton cites a different explanation found in the Lalitavistara in which the meditation involves pervading everything while not agitating or disturbing the space element at all.