| John Murdock |
it must be done in an area, but you can cast it where an altar, shrine or any other permanent fixture of your deity or alignment to make the consecrate stronger or of another deity or alignment to cut off the link with that deity/alignment.
note that you do not cast it on those thing but just in the area they are to boost the effect of consecrate, the same thing applies to desecrate if you cast desecrate instead