The identical first and last lines of this psalm — “Praise the Lord!” — sum it up well enough. The paean calls on all people great and small — from kings to “maidens” — to sing YHWH’s praises.
But I might add that this psalmist also gives souls to all of creation — sun, moon, stars, nature’s four elements, all plants and animals on land and at sea. That sounds much like animism to me.
And so, if a rock, a tree, or a cloud can love something greater than itself, does that mean that it — or that he, or she, or they — can be loved back? I do hope so, for we are all part of what I call the iSoul.