森深不见鹿
[sēn shēn bù jiàn lù]
Literally translates to 'In the deep forest no deer is seen', it reflects an idea of isolation or difficulty seeing through complexity; 'seeing deer' in ancient culture is regarded as something peaceful, auspicious or mysterious, thus the meaning behind may include missing or pursuing something elusive yet lovely or valuable as represented by 'deer'. Also gives an impression of being in mystery.