The Sentinels in the darkening of the year

He did not believe in rituals. False gods never offered their protection, they evoked wraith and pestilence, and Castiel could hear his father's voice as he laid out the edicts. He could remember his mother's gentle lessons, protecting her children from what she had thought were the greatest risks. He had been raised for the family, protective of his people and their purpose but this was something different. The two witches that lead the forest had changed much in their brief time of leading. Castiel reached over to nudge @Winchester gently, his attentions turning from the dark male as they walked to forest to head towards the summons. 

He brought nothing, unfamiliar and uncomfortable with the premise of rituals and worship of things he did not feel in his soul. He did linger, not in the way, for anyone who might actually want to openly participate.