Eternity

Eternity is usually thought to mean everlastingness. However, in the course of philosophical discussion the idea has been further refined, and two different concepts were developed--that of "atemporality", which is beyond time, and that of "sempiternity", which denotes infinity in time.

The English word "eternal" derives from the Latin term aevum, "an age or era". This does not seem to convey neither the idea of atemporality nor of sempiternity, but of a specific cycle of time. The same is the case with the Greek word Aeon, meaning a finite period of time, which Mme. Blavatsky claims is the original term that has been translated as "Eternity" in the Bible. The word "eternal" is usually applied in this way in the Theosophical literature:

The word “Eternal,” note well again, standing here only in the sense of “Æon,” as lasting throughout the seemingly interminable, but still limited cycle of activity, called by us Manvantara.

According to H. P. Blavatsky, this is also the way Eastern thought treats the concept of "eternity":

Eternity with the Orientals has quite another signification than it has with us [in the Western thought]. It stands generally for the 100 years or "age" of Brahma, the duration of a Kalpa or a period of 4,320,000,000 years.

In the Theosophical view time is always limited and begins with the manifestation, which denies the idea of sempiternity. As to that of "atemporality" Mme. Blavatsky refers to it as "duration"

Further reading

• Eternity at Theosopedia