satyaban sat shri akal,
brother actually naam in Punjabi literally means name but here it refers to the name of almighty what so ever name you choose for the god is your naam in olden days there was a tradition under which a guru will give naam to his shishya but when they were alone and the guru would whisper it in the ear of his shishya the radha soamis and nirankaris today call it bhramgyan or bhram darshan which of course is not correct.our lord jagat Guru Nanak gave naam to this world to every man without any restriction which is not common till this date.to his Sikhs he gave the naam waheguru the word around which our faith revolves every single belief revolves around waheguru as the centre.
Reference:: Sikh Philosophy Network http://www.sikhphilosophy.net/showthread.php?t=26743Reference:: Sikh Philosophy Network http://www.sikhphilosophy.net/showthread.php?t=26743
naam has a very intoxicating effect our master Guru Nanak considered it to be the most intoxicating thing in the sense that who so ever becomes its addict cannot survive without it you wont get naam in bazaar(market) no where in this world but through your inner self when naam is to be consumed simran is done that is contemplation on the gods name
this concept is entirely different from some concepts like concepts in buddhism where they do not use naam but only dhyan i hope you got it.
Guru Nanak was the biggest addict of naam and one of its biggest and greatest dealer henceforth i ask him for naam daat
he was so addict that he was compelled to write "naam khumari naanka chadi rawe din raat" may i become an addict of your name my lord in the day and in the night