Summa Theologica

In due sequence we must consider the external acts of latria, and in the first place, adoration whereby one uses one's body to reverence God; secondly, those acts whereby some external thing is offered to God; thirdly, those acts whereby something belonging to God is assumed.

Under the first head there are three points of inquiry:

(1) Whether adoration is an act of latria?

(2) Whether adoration denotes an internal or an external act?

(3) Whether adoration requires a definite place?