Because that's what Alexander and Daniel was doing in private when they weren't trying to banish the shadow.
There was a planned flashback in the bedroom, when you touch the bed (remember?). They switched the original version for the one when Alexander wakes Daniel and asks about nightmares. They thought it was too provoking.
"What you think is irrelevant" - A character of our time
Holy mother of GOD this place is incredible. I discovered it like most sane people do; through media coverage of professor Richard Lenski's correspondence with the site's owner:
Lenski conducted a 20-year experiment with E. coli which produced clearly visible evidence of evolution (I also added the article on that experiment). The site's owner, obviously, didn't like it. Hilarity ensued.