1. Each lila of each individual avatara appears successively and continuously on each individual earth in each individual universe [brahmanda]. The sequence of the appearance of the avatara-s on one particular earth is related to the geological age of this earth and its historical evolution. The countless universes, each and every one with its own earth, are in different phases of their geological age. A certain avatara’s lila, which has been enacted on one earth, immediately takes place on another earth, in another universe, which is exactly at the same evolutionary stage as the universe in which this avatara’s lila was enacted the moment before. Consequently, each individual avatara's lila becomes visible or shines forth continually, as long as there are universes [i.e. eternally]. […]

Svami Sadananda Dasa