What Gurbani says about life after death ?
As christainity says there is heaven or hell after death.Islam says that Muhammad will awake all the spirits from the grave and decide for their fate.Hinduism says that there is a Krishna World.The person who remembers Krishna all his life and also in the last moment of his life will go to Krishna World where he will do service to Krishna which is like a spiritual World.I think that in other religions the concept of life after death is clearly mentioned but in Sikhism it's not clear.Sikhism do says that this World is a temporary place or we are like guests here.In Gurbani in many places i have read about Dharmraj or the word "Dargah" meaning God's court where a person is either faces punishment and again have to take birth or he is respected by having robes of honour and is freed from the cycle of birth and death.Somewhere in Gurbani it is also mentioned about God's kingdom or Gurpuri in SarablohGranth.
But as the religious scholars confidently preach about this concept in their respected temples it is not preached by any Sikh Scholar.
