Reflections From Sam Delaney's Dhalgren

One of my favorite Sci-fi novels is "Dhalgren" by Sam Delany.
A brilliant novel that much surpasses IMHO the touchstone
novel by the dean of S-F Robert Heinlien, "Stanger in a
Strange Land". This paragraph by the main character
sticks in my mind and I'm not really sure I understand
what it means, or the conclusions to be drawn. But I do
know it strikes a chord in me.

" I am limited, finite, and fixed. I am in terror of the infinity before me, having come through the one behind bringing no knowledge I can take on. I commend myself up to what is greater than I, and try to be good. That is wrestling with what I have been given. Do I rage at what I have not ? (Is infinity some illusion generated by the way in which time is perceived?) I try to end this pride and rage and commend myself to what is there, instead of illusion. But the veil is the juncture of the perceived and perception. And what in life can rip that? Is the only prayer, then, to live steadily and dully, doing and doubting what the mind demands?
I am limited, finite, and fixed. I rage for reasons, cry for pity. Do with me what way you will. "

Samuel R Delany from "Dhalgren"