Thanks for sharing Amarpal ji.
Complete discussion applies in today's world too, perhaps there is not much difference in human thinking even today. Looking at this pauri, 'man jeetai jag jeet' is something we should really aspire for, I think.
Reference:: Sikh Philosophy Network http://www.sikhphilosophy.net/jap-ji-sahib/761-japji-sahib-28th-pauri.html
Regards.