Heaven is a final destination all Christians will go, a direction that leads to internity that all believers will go through.
The bible made us to know that there is heaven for all the righteous people that has lead a good life of christ, ithere is heaven and there is hell, it depends on the one you want.
Currently I do not believe that there is a human in heaven, the only people there are the hose of heavens because for with flesh no man can see the lord.
The bible said the heavens is of the Lord.
Heaven is were he dwels so if we must see him we must go to heaven.