Is there a heaven?

As over 100 billion human souls wondered over time, is there a heaven? Given a limited allocation of time and space, it has been tempting to think about breaking free. The heaven fits as it lacks precise definition affording infinite flexibility. And those who could prove otherwise had already left permanently. It would be a shame if there were no heaven, as nearly 5 billion live their limited lives to reach it and the rest do the same imagining it is a…