On a peaceful night, sweet dreams come.

Meaning: This means that when it's a calm and quiet night, good and happy dreams appear or come to you while you sleep.

Choice of Words: On means something is happening at a particular place or time. Peaceful means quiet and calm, like a night with no noise or disturbance. Night is the time of day when it's dark and people usually sleep. Sweet means something that tastes or smells nice, like a yummy treat. Dreams are what you see in your mind when you sleep. Come means to arrive or appear.