The phrase can suggest encouragement or warning, depending on the context.

Positive or Negative

Emphasize that ideas provided can influence someone's actions or decisions.

Idea Influence

Sometimes used sarcastically to imply the idea is undesirable or mischievous.

It can mean suggesting an idea subtly without directly saying it.

It's often about sparking a new, perhaps unforeseen idea in someone's mind.

Used in a friendly tone as a light-hearted warning or advice.