Duke Assits Audrey

What is Duke showing Nathan and Audrey on Haven? "Over My Head" is the fourth episode of the show's third season.
Added:

Haven Season 3 Episode 4 Quotes

It's not stupid. It's regressive hypnotherapy and I blew three days on the web trying to figure it out.

Claire

I was Lucy. I could feel being Lucy. That's never happened to me before.

Audrey