Crystal gazing and Omen

Crystal gazing noun - Staring into a crystal ball to arouse visions of future or distant events.

Omen and crystal gazing are semantically related. in prediction topic. In some cases you can use "Omen" instead a noun phrase "Crystal gazing", when it comes to topics like declaration made in advance.

Omen noun - Something believed to be a sign or warning of a future event.

Crystal gazing and omen are semantically related. Sometimes you can use "Crystal gazing" instead a noun "Omen".