I kind always wanted to show Handwing being so desperate to not let Beijeye go, that he tries some way of contacting him that obviously doesn't work, specifically something that he normally wouldn't believe in in the first place. Even more so, I liked the idea of Vilkas walking in on it and Handwing having to explain what the fuck he's doing with something as cheesy as a ouija board. With a knife stabbed in it.

When Vilkas lived with Beijeye as a kid, he was, by default, also living with Handwing. Beijeye was like his older brother, he did also end up being like a kid brother to Handwing as well, except that Handwing is like the asshole, bad influence, sibling who picks on the younger one. He cares about Vilkas and knows that Vilkas is literally the only person he has left who even tolerates him and his bullshit, but he goes out of his way to not let anyone realize it. After Beijeye was killed, Vilkas wasn't able to depend on Handwing as much as he really needed, but as Vilkas got older, Handwing has turned to leaching off him more and more. As traumatic as Beijeye's death was to Vilkas, and as much as Handwing over-uses it as an excuse, Handwing has had a harder time moving on. Which is why Vilkas feels too guilty about the idea of ditching Handwing, despite just about everyone he knows telling him should.

In the end, Vilkas may think this is strange and Handwing may be a defensively jerk about it; but really, Vilkas just feels bad for him.