The Blue Barn is repeatedly seen throughout the series and has some kind of meaning and symbolism behind
The Blue Barn is a mysterious place that seems to keep popping up. It first appears as a portrait. It later appears on The Drawing that Wilfred discovers. A strange symbol is behind the barn on the drawing, which Ryan later discovers. It appears in full in Amends, where Wilfred pushes Ryan off the top floor down to three evil version of Wilfred, before Ryan wakes up. Ryan meets Charles, the leader of The Flock Of The Grey Shepherd, here in the series finale.