Hi, my question kind of has two parts, since it seems like you tend to not address the full scope of every question, and this question is really bugging me:
First, we know that God can be sad, just as we can. And we have free will, which we will retain in heaven. In heaven, aren’t we supposed to be eternally happy? What if we have regrets of not helping the world more while on earth, or are sad for another reason after all, we can choose to be sad. How then can heaven promise eternal happiness while we retain our free will?
Second, if it cannot absolutely promise eternal happiness, what are heaven’s defining characteristics? Why is being in communion with God alone so great if we are unhappy? A brief summary will help. Please do not just recommend some book.