深知你是梦却不愿醒来
[shēn zhī nĭ shì mèng què bù yuàn xĭng lái]
It means 'I know it was all just a dream, yet I didn't want to wake up from it'. This could represent how someone knows something was unreal but they were so captivated or enchanted by it, they wish they could still experience it. Perhaps referring to past relationships or experiences.