Q. When we get to heaven, will we know what's happening on earth? If so, how can we be happy?
We don't know exactly how much knowledge those in heaven have about what happens here. The Bible does say that “we are surrounded by ... a great cloud of witnesses'' (i.e., those who have already entered heaven) but it isn't clear if this means they are able to observe our lives (Hebrews 12:1).
But what we do know about heaven is that we will be with God – and because of that, heaven is a place of supreme joy. And even if we do see something of what is happening on earth, we'll see the whole picture then, and we'll realize how it all fits in with God's eternal plan. We'll realize too that evil and death will be defeated, and Christ will be victorious.
Heaven is the heritage of every believer – because Christ conquered death by his resurrection.
Ask God to use you to encourage others who are overwhelmed by life's burdens. He wants to use you to point others to Christ, who alone can give us hope and new life.