"Hymn to the Wild Boar" by Julian Grenfell conveys the message that a man feels he is doing something worthwhile and is acting bravely when he takes on the responsibilities of "the hunt" and goes after one of the noble beast of the field. This was especially true in earlier times when the thrill of the hunt and the strength and even majesty of the quarry were a challenge to hunter-gatherers.
Grenfell indicates that although God has given man the mighty horse, steel for weapons, and fair women, the pursuit of the wild boar is a courageous act and one that ignites passion and resolve in a man. The poet further indicates (in the second stanza) that horses and hunting weapons were not even totally necessary until God made the wild boar. The wild boar necessitated the use of horses for hunting, and weapons as well.
In the third stanza of the poem, Grenfell relates that hunting the wild boar is what lures and tempts a man - moreso than strong drink and the allure of a fine woman...
But wine nor love can tempt us more
When we may hunt the fighting boar.
Moreover, Grenfell relates that the thrill of hunting the wild boar dates back to ancient times. He refers to how the first men engaged in the hunt as providers for their families:
The sons of Shem and many more
Came out to ride the fighting boar.
In addition, the poet alludes to the fact that men sought to tame and conquer the wild boar - it was a testament to man's bravery and hunting skill insomuch that they not only hunted but also rode the fighting boar.