Exploring the role of rituals in projects and temporary organizations is potentially a way to understand and theorize projects and project-as-practice better. The task to do so is not easy since rituals can also be conceived to be related to other phenomena like routines in project work, prescribed or not. Furthermore, rituals play different roles within a temporary organization as compared to the roles they might have in relation to the general context of a project. Boundaries of projects and temporary organizations are more often than not blurred and the notion of rituals helps to remind us about that. One argument for attending to rituals is that they as well as routines can be constructed to promote sustainability.