Avīci


In Buddhism, Avīci or Avici is the lowest level of the Naraka or "hell" realm, with the most suffering, into which the dead who have committed grave misdeeds may be reborn. It is said to be a cube 20,000 yojanas to a side, buried deep underneath the divine earth. Avīci is often translated into English as "interminable" or "incessant", referring to suffering without periods of respite, although it is believed to be ultimately impermanent.

Avīci-punishable offenses/transgressions

There are various evil acts which can lead one to being committed to the torments of the Avīci hell. People reborn in have generally committed one or more of the Five Grave Offenses:
Buddhism teaches that going to Naraka is temporary, allowing the offenders to work off the karma they garnered in life. Avīci is sometimes cited as lasting 3.39738624×1018 or 339,738,624×1010 years, about 3.4 quintillion years.
The Lotus Sutra provides an example of humans who have to endure long-term suffering in. Some sutras state that rebirth in will be for innumerable kalpas. When the offending soul passes away after one kalpa, it is reborn in the same place, suffering for another kalpa, and on and on until it has exhausted its bad karma. For this reason, the hell is also known as the "nonstop way".
Nichiren famously wrote that Buddhist monks who ignored the passages in the Lotus Sutra, which claimed superiority over other sutras, would fall into the Avīci hell. Outside of Nichiren, it is extremely rare for a Buddhist monk to condemn anyone to Avīci, although the Lotus Sutra itself states of anyone who slanders it: "when his life comes to an end, he will enter the Avichi Hell."
Some believe rebirth in Avīci should be seen as a process of purification. If anyone correctly follows the teachings of Buddha, he will be able to attain enlightenment without going to any hell even if he has accumulated a vast amount of negative karma.
There are many stories of people who have accumulated negative karma but avoided all the levels of Naraka because they attained enlightenment before their karma ripened. If one has Anantarika-karma, he will not be able to attain enlightenment in this life because this negative karma will ripen immediately.
There is no supernatural being that determines anyone's fate of its own will; everyone is responsible for his own actions and their consequences: " beings are owners of kamma, heir to kamma, born of kamma, related through kamma, and have kamma as their arbitrator. Kamma is what creates distinctions among beings in terms of coarseness & refinement." Thus, being reborn in Avīci is purely the inevitable result of one's evil deeds and not the decision of a deity.