This is my first time playing WtA, I've played VtM before, and this specific topic is puzzling me really hard.

"If a Silent Strider causes, participates in, or even witnesses death but doesn't perform a *commemorative rite* to acknowledge it, they may recover only a single point of Willpower at the start of the next session, instead of their Composure or Resolve rating.

How long does this rite take? Is that an actual capital R Rite? Cuz there is no "commemorative rite". There's "Rite of Celebration", but those only happen once per Story and are very significant, so that can't be it. There is no mention of "commemorative rite" anywhere else in the book. Did they really just leave something this big for the player and Storyteller to figure out?