The Void,
essentially is empty space,
or the third true base force of our universe.
It’s pure emptyness,
or what you find in other belief systems,
for example under the name:
Nirvana.
On contrary,
here’s very good content about the Source.
(Sat Nam).
Our Brother Micah,
also explains the different stages and layors between them,
in his post.
Sincerely,
¥’Berioth