"But only supress the two aspects, how can you realize unity?"

Like Liz says in her posting, it's about being in there first.
Attaining the way becomes not a matter of rejecting this or that anymore.
You are simply no longer coming from a dualistic viewpoint.

(Right! and somebody please tell me how not to experience conventional and ultimate reality in a dualistic way, as I go to pick out paint colors and garden flowers?)