Motion seconded. I read it first when I was barely ten, and even though I barely understood a word of it, I made a vow to myself to keep coming back to it until I did. I've been coming back to it constantly ever since, and I think I finally get it. I think.
I am freakishly hooked on this book and the thing I find, is that every 5 to 10 years I read it again, there are parts that realise I never understood (or even truly read) when I read it before.
Mind you, I have that with particular novels & movies I return to, too.