Navarre Commentary on Canon Law

This resemblance borne by sacramentals with regards to sacraments is also indicated in the canon by the term "imitation"….The scope of that imitation is - subject to the ontological nature - indeed a broad one. As has been shown by the doctrine, they resemble eachother in that:

In this commentary on canon 1166 of the new Code of Canon Law, the author outlines five points of "imitation", namely: 1.sensible signs, 2.public means of sanctification, 3.they are intended to produce spiritual effects, 4.their confection and administration belong to the public worship of the Church hence are regulated by law, 5.their efficacy flows from the passion, death and resurrection of Christ.

Book of Blessings

The blessings instituted by the Church are included among those signs perceptible to the senses by which human sanctification in Christ and the glorification of God are "signified and brought about in ways proper to each of these signs." Human sanctification and God's glorification are the ends toward which all the Church's other activities are directed.

- Book of Blessings Approved for Use in the Dioceses of the United States of America. (New York, NY: Catholic Book Publishing, 1989), §9 p.xxv.

Blessings fit into the basic mission of the Church. This reminds me of Weller's introduction where he says Christ is the "anointed of God" who by his incarnation sanctifies and sacramentalizes creation. Then the work of the Holy Spirit builds on this.

I think this quote speaks to the objective / concrete quality of blessings, they aid in accomplishing sanctification AND God's glorification.