Wherefore this sacred synod, while expounding the doctrine of the Church, in which the divine Redeemer brings about our salvation, intends to set forth painstakingly both therole of the Blessed Virgin in the mystery of the Incarnate Word and the Mystical Body. It does not, however, intend to give a complete doctrine on Mary, nor does it wish to decide those questions which the work of theologians has not yet fully clarified.

Lumen Gentium.