Interpreting and Applying Amoris Laetitia

Dear Apologist:  What was the Pope getting at with Amoris Laetitia?  What IS the proper application of that document - and how does it fit into existing Church teaching?

The proper interpretation of Amoris Laetitia has been a contentious topic since its release.  Even today there are a handful of Cardinals who – concerned with widespread misreading of the document – have asked the Vatican to clarify and reiterate certain points.

So this will be my best attempt.