。
Try to see things as they really are.
Literal
Things [topic-は] as-they-are see [purpose-ように] do.
~ようにしなさい combines the purpose clause ように ('so that') with the auxiliary する ('make it so') and a soft なさい command — 'make it so that you see things as they are.' The whole frame is a step gentler than a bare imperative, often used by teachers and parents.