梦不能做的太深话不能说的太真
[mèng bù néng zuò de tài shēn huà bù néng shuō de tài zhēn]
'Dreams Shouldn't Be Too Profound, Words Can't Be Uttered Fully True.' This indicates holding back from delving too deep in dreams (avoid over fantasizing) as well as not saying things outright or entirely truthfully due to fear of hurt, misunderstanding, consequences from reality hitting dreams harshly or protecting oneself/others from direct confrontation.