Duality Deck

The Happy Squirrel

It is on Etsy and reviewed on YouTube.
Anyone seen this and what do you think of it?
I don't understand what this deck is about. But I am I intrigued by the faces. I don't normally like human and face dominant deck. But this feels nice. But I still don't understand why it is called duality and what the red dots are about. EFT tapping points when saying affirmation? What is EFT? Is this explained in the booklet?
 

2dogs

The artist started a thread on the deck Here :lightbulb.