看不见你我怎能心安
[kàn bù jiàn nĭ wŏ zĕn néng xīn ān]
Which translates as 'How can I feel safe if I cannot see you'. It could imply strong attachment and reliance on a significant other. Expressing that the individual can find comfort or peace only in the presence of the one being addressed or in situations they're visible or perceivable.