My Thoughts on "Jabberwocky"

The genre of the poem is fantasy. It is quite obvious because there is no creature that looks like the "Jabberwocky" as originally illustrated in the Looking Glass. The poem is constructed of many words that I can't find in the dictionary and words that I found but have never heard of before, so it doesn't make a lot of sense to me. However, I do get the plot of the poem:
A young man travelled through the woods one day, in which lived a lot of dangerous creatures. His mother had warned him so. When he was resting, the Jabberwocky attacks. But he fought it and killed it in the end. Then he brings home the creature's chopped off head to show off his bravery.

With many unknown words, the poem appears to be very weird to me. This makes me think that something we don't acknowledge doesn't make it false. Maybe the poet is trying to express that knowledge is infinite and there is yet so much which we don't know, or, that we shouldn't judge something as being weird just because it doesn't make sense to us.