'Light verse' suggests frivolity. You would indeed have to search hard to find deep meaning in, for example, the title poem and 2002: A Space Fantasy. Some, however, like Zing-Zor, Glorious War do contain a more serious message, although conveyed in a light way.
The primary purpose of all 76 pages of this poetry collection is, however, to entertain. For more serious - though I hope not unrelentingly grim - poetry have a look at SCENES FROM SEASONS (but not that sort of season).