For Marriage
People's appearances differ greatly from their inner reality, and you will realize this when it is too late. Abandon it.
For Business / Deal
Outwardly it looks very beautiful and attractive, but inwardly it will cause great damage to both your wealth and your reputation. Abandon it.
وَمَا يَسْتَوِي الْأَعْمَىٰ وَالْبَصِيرُ
Wama yastawee alaAAma waalbaseeru
The blind and the seeing are not alike;