§1. The Church carries out the function of sanctifying also by other means, both by prayers in which it asks God to sanctify the Christian faithful in truth, and by works of penance and charity which greatly help to root and strengthen the kingdom of Christ in souls and contribute to the salvation of the world.
§2. Local ordinaries are to take care that the prayers and pious and sacred exercises of the Christian people are fully in keeping with the norms of the Church.
Source: Code of Canon Law (Vatican.va)