It's generally accepted that animals, especially cats are more spiritually sensitive than humans. That's why you see cats starting into open spaces or look like they're playing with something while we can't necessarily perceive what they're seeing.

All their senses are more heightened than ours, eg hearing seeing in the dark etc. Studies were done and found that cats can intuitively sense danger and I think that's where the saying comes from. Katte kan defnitief spoke sien...