Dreams involving animals, especially pets like cats, often symbolize aspects of ourselves or our instincts. In your dream, the cat could represent your playful or instinctual side, while the blue butterflies might symbolize transformation, freedom, or beauty.

The act of your cat trying to catch the butterflies suggests a desire to control or capture something that is naturally free and beautiful. Your repeated phrase, "no, no, no, let them be," indicates an inner conflict between wanting to allow things to unfold naturally and the instinct to pursue or control them.

This dream could reflect a situation in your waking life where you might feel the need to let go of control and allow transformation or change to happen on its own. It may also suggest a reminder to appreciate beauty and freedom without the urge to possess or interfere with it.

Consider what areas of your life might resonate with these themes. Are there aspects that you are trying to control or situations where you might benefit from stepping back and allowing things to develop organically? Reflecting on this may provide you with valuable insights.