§1. Superiors and members are to retain faithfully the mission and works proper to the institute. Nevertheless, attentive to the necessities of times and places, they are to accommodate them prudently, even employing new and opportune means.
§2. Moreover, if they have associations of the Christian faithful joined to them, institutes are to assist them with special care so that they are imbued with the genuine spirit of their family.
Source: Code of Canon Law (Vatican.va)