"A signification of our humble and grateful acknowledgment of the benefits of Christ"

There is much to deeply regret and utterly disown in the text of the Black Rubric.  Admittedly the 1662 version was something of an improvement on that of 1552:


It is hereby declared, That thereby no adoration is intended, or ought to be done, either unto the Sacramental Bread or Wine there bodily received, or unto any Corporal Presence of Christ's natural Flesh and Blood (1662);


We do declare that it is not meant thereby, that any adoration is done, or ought to be done, either unto the Sacramental bread or wine there bodily received, or unto any real and essential presence there being of Christ's natural flesh and blood (1552).


1552 was an explicit denunciation of the catholic understanding of Christ's presence in the Eucharist.  The deletion of the text in 1559 and its re-wording in 1662 were attempts to moderate this and reconcile Anglicanism to the patristic affirmations of the change in the bread and wine effected by the Eucharist.


Even then, it falls far short of St Irenaeus' teaching:


the mixed cup and the manufactured bread receive the Word of God and become the Eucharist, that is to say, the Body and Blood of Christ ... For just as the bread which comes from the earth, having received the invocation of God, is no longer ordinary bread, but the Eucharist.


Perhaps nothing so clearly illustrates Anglicanism's need of the teaching of the great Latin Church in order to be authentically catholic.  There is, however, one aspect of the Black Rubric that demonstrates how the Anglican patrimony can contribute to the renewal of the Catholic tradition:


Whereas it is ordained in this Office for the Administration of the Lord's Supper, that the Communicants should receive the same kneeling; (which order is well meant, for a signification of our humble and grateful acknowledgment of the benefits of Christ therein given to all worthy Receivers ...).


Rejecting the practice of the Reformed tradition in sitting to receive the Holy Eucharist, even at the height of Reformation controversy Anglicanism affirmed the catholic practice of kneeling to receive.  Benedict XVI has, of course, encouraged the Latin Church to re-embrace the practice.  Now the head of the Congregation for Divine Worship has also urged a return to kneeling:


Spanish Cardinal Antonio Canizares Llovera recently recommended that Catholics receive Communion on the tongue, while kneeling.


“It is to simply know that we are before God himself and that He came to us and that we are undeserving,” the prefect of the Vatican's Congregation for Divine Worship and the Discipline of the Sacraments said in an interview with CNA during his visit to Lima, Peru.


The cardinal’s remarks came in response to a question on whether Catholics should receive Communion in the hand or on the tongue.


He recommended that Catholics “receive Communion on the tongue and while kneeling.”


Receiving Communion in this way, the cardinal continued, “is the sign of adoration that needs to be recovered. I think the entire Church needs to receive Communion while kneeling.”


While Anglican worship has mirrored many of the post-Vatican II liturgical reforms, kneeling to receive the Eucharist has remained the norm within Anglicanism.  The Ordinariates will almost certainly continue this practice and thereby aid the 'reform of the reform'.  It is, perhaps, a sign of the workings of grace that even the Black Rubric can contribute to a recovery of the Church's sense of mystery and adoration before Holy Eucharist.