The basic principle: understand what God is doing (spiritual experience and knowledge of the Tradition)

The theology of the movements ²
Joseph Ratzinger: Movements share in the universal apostolic responsibility of the successor of Peter.

Angelo Scola: Movements are a particular realization of Church, which is itself a "movement." "Movement" means mission, apostolate, and identity is in mission; the particular and the universal are aspects of the same Church.

Albert de Monléon: The movements are places of a transfigured humanity which is founded on a personal encounter with the Living Christ revivifying the grace of baptism.

The theology of the laity and its mission ³
Dionysius and the threefold hierarchy (OT - NT - Heaven)

Giovanni Magnani: The whole Church has a "lay character":

[W]e feel the "layperson" absorbs the whole theological significance of the christifidelis, seeing the term "layperson" not as something more or something less than the ratio of the christifidelis but as the only practical area (distinguished by its own specific charisms and ministries) where his relationship to the world and to the lay condition indicated in it can come to complete fulfillment. It is a permanent, practical and stable way that we see indicated in the conciliar affirmation of a proprium (or "distinctive character," "although not an exclusive one") of the laity which finds its full justification here. ⁴

CL #55: The lay state of life has its distinctive feature in its secular character. It fulfils an ecclesial service in bearing witness to, and in its own way recalling for priests, women and men religious, the significance of the earthly and temporal realities in the salvific plan of God. In turn, the ministerial priesthood represents in different times and places, the permanent guarantee of the sacramental presence of Christ, the Redeemer. The religious state bears witness to the eschatological character of the Church, that is, the straining toward the Kingdom of God that is prefigured and in some way anticipated and experienced even now through the vows of chastity, poverty and obedience.

All the states of life, whether taken collectively or individually in relation to the others, are at the service of the Church's growth. While different in expression, they are deeply united in the Church's "mystery of communion" and are dynamically coordinated in its unique mission.

Cooperation with other lay movements and with the bishop

Developing a theoretical understanding and practical implementation of Christian marriage as the place where, pre-eminently, the domains of creation and redemption meet

Show forth the fruits of communal living for families and celibates

The grace of the "encounter with Christ" must animate: liturgy, family life, theology, social concerns, inculturation