Hi,
just merely look at it and give it a try... What are you actually asking for, here? Are you asking for someone to paraphrase and explain this whole, dense passage?
That's a lot of work to ask for, in a forum like this! I seems to me that if this is totally beyond your understanding, you need to put it aside for later and try reading something easier. On the other hand, if you are ready for a reading challenge like this, you should be able to get some level of understanding for yourself and then just ask us more specific questions about parts that we can help you with.
I hope you don't mind my writing this comment. If you can be more specific, I'd be happy to try to be of assistance.
Best wishes, Clive