Truthfully I never believed the cloud and harp thing either, but that's what you typically see in visual depictions. Never knew where that came from.
I was recently asked about heaven, and when I actually began to think about it I realized that I actually knew very little about it. There'll be no tears, no pain or sorrow. Praise to God, etc. But then.... I really didn't know. Will we even know our family members and friends? We talk about peace, but how can there be peace if I know my child is missing? Do you think our memories will die with our bodies?