Someone once asked...

How does the One consciousness split into many?

Someone answered with kindness...

In order for the Monad (the One) to understand itself, it was necessary to split itself into separate aspects. A student who has themselves for a master, has a fool for a teacher, and in the absence of any other alternatives, this was the path taken.

Another soul answered...

Many inspired texts talk about this but this speaker is the most lucid that I have found: http://phoenixsourcedistributors.com/html/j032/