Please lay out the ladder of consciousness in simple terms that can be
understood by all

Here's something for you.  It is a place to start.  I was looking for
the awareness levels that are on the Classification, Gradation and
Awareness Chart listed out but can't find it on line.  Here's a start.

http://www.neweradianetics.org.uk/page01.htm

http://www.lronhubbardprofile.org/bridge.htm