The human part of the family brings in a new member, but it has to be assured that the divine part is willing to accept her before the step taken can be regarded as complete.

She has to enter the family in such a way as to be able to share in its sacra, i.e.in the worship of the household spirits, the ancestors in their tombs, or in any special cult attached to the family.

In order to secure this eligibility, she was in the earliest times subjected to a ceremony which was clearly of a sacramental character, and which had as its effect the transference of the bride from the hand (manus) of her father, i.e.from absolute subjection to him as the head of her own family, to the hand of her husband, i.e.to absolute subjection to him as the head of her new family.
This sacramental ceremony was called _confarreatio_, because a sacred cake, made of the old Italian grain called _far_, and offered to Jupiter Farreus,[205] was partaken of by bride and bridegroom, in the presence of the Pontifex Maximus, the Flamen Dialis, and ten other witnesses.

At such a ceremony the auspices had of course been taken, and apparently a victim was also slain, and offered probably to Ceres, the skin of which was stretched over two seats (sellae), on which the bride and bridegroom had to sit.[206] These details of the early form of patrician marriage are only mentioned here to make the religious character of the Roman idea of the rite quite plain; in other words, to prove that the entrance of a bride into a family from outside was a matter of very great difficulty and seriousness, not to be achieved without special aid and the intervention of the gods.

We may even go so far as to say that the new materfamilias was in some sort a priestess of the household, and that she must undergo a solemn initiation before assuming that position.