ਰਾਹ ਿਪਆ ਜਾਣੇ ਜਾਂ ਵਾਹ ਿਪਆ ਜਾਣੇ
Raah (path, road) piya (on the way) jannai (know/experience) ja (or) vaah (do business) jannai (to know)

You will know the path by actually travelling on the path, similarly you will know a person when you have experienced 'business' (giving and taking) with him.
