Savage Garden - Truly Madly Deeply

#highlight:
We can find this song is blended with both abstract and concrete nouns.
E.g.
Abstract-dream, wish, fantasy, hope, love, comfort, protection, pleasure
Concrete-mountain, sea, sky, star
The abstract nouns are used in relation to the intimate feeling and essential part of life, while the concrete nouns are mostly the natural imagery which is also the essential part of our life.
The message could be that the lover declares to be the essential part of his partner's life. At the same time, he needs her 'truly madly deeply' too in his life. They are the essential part for one another's life.