It’s like when I came back from Brazil. I received some Brazilian currency (reals) for my expense there but I carried some coins back with me. Now those reals are useless here, I cannot even buy a pack of chewing gum with them. That currency is not accepted here but rather must be exchanged into an acceptable currency. It is the same in heaven. All the money we have acquired or spent on ourselves has no value. In heaven the only currency that counts is what you have invested for heaven while on earth.
Matthew 6:19-20 19“Do not store up for yourselves treasures on earth, where moths and vermin destroy, and where thieves break in and steal. 20But store up for yourselves treasures in heaven, where moths and vermin do not destroy, and where thieves do not break in and steal.