The main reason is because it's not Christian, but it still makes them feel like they're being "spiritual".
The really interesting thing is that none of them, maybe not even the Bergs, know what the red strings actually mean. And there is a real meaning to them.
"The main reason is because it's not Christian, but it still makes them feel like they're being "spiritual"."
Yep. They desperately want spiritality, but they can't find it in Christianity or REAL Judaism (as opposed to this kabbalah center nonsense) because then their hollywood friends would say "What are you, like, a Republican now?"