"Every passenger who goes to 2046 has the same intention. They want to recapture lost memories. (...) Before, when people had secrets they didn't want to share, they'd climb a mountain, they'd find a tree and carve a hole in it and whisper the secret into the hole, then cover it over with mud. That way, nobody else would ever discover it. I once fell in love with someone. After a while, she wasn't there. I went to 2046. I thought she might be waiting for me there. But I couldn't find her. I can't stop wondering if she loved me or not, but I never found out. Maybe her answer was like a secret that no one else would ever know.
All memories are traces of tears."
(Chow Mo Wan în 2046/r. Wong Kar Wai, 2004)