The cross symbolizes that Bai Liu is Sheita's only believer
Xie You's cross symbolizes Xie Ta's trust and expectations for Xie You
Xie You consciously agreed to Xie Ta and became one of the people close to the magic card, although he came in by accident.
If you don't like it, don't spray it. Thank you.
Purpose: People must learn to curb desires instead of indulging them, stay rational, and stick to kindness.