Well, I respect David Hawkins' writings on this. & I understand what you're asking too because, even at the point I'm at now, I still look at Lao Tzu's teachings & go "huh?". Heh.
Anyways! I am in line with Truefire. Non-duality is the quality of life that is underneath the daily life that goes on around us. When we only see the anger a person is carrying, or only the clothes they are wearing, or see only their face we cannot see the beauty & divinity that shines forth from underneath. It is quiet & unassuming but it is there.
There is no Beauty vs. Ugly...but rather, beauty & love & oneness surround us all & is called many names.. God, Allah, Yahweh, whatever..

but it exists.
& according to Hawkins when one achieves enlightenment I believe he said the body functions on its own & you realize it wasn't you that was getting you to eat, bathe, brush your teeth but rather the body does it on its own & you don't have to force it to. So you can still have a "normal" life in a certain sense of the word but you just don't become attached to the things that used to attach you. I hope this makes sense. If you're curious you can read Hawkins' writings.. Eckhart Tolle I like too. I am reading a Course in Miracles too & that I find helpful also.
Hmm... I believe when you are reading that you are to not differentiate between good & bad & such..well, because some "positive" emotions are actually not based on Love but rather from an attachment to them. If you look closely it can be observed I believe. So there is no good or bad but rather a beauty that shines from within.

Heh. I'm not enlightened but I hope that helped. Maybe check out the authors I mentioned..it might help. I was also confused too. especially when I read the Heart Sutra & they talk of "form is void, void is form" & I believe that is in line with what you are asking of right now.