It’s hard to imagine that we can be happy in heaven if we have an awareness that those we loved on earth are not present. We do know that when we arrive in Heaven, we will not have anything to be saddened by. Revelation 21:4 tells us, “He will wipe every tear from their eyes. There will be no more death or mourning or crying or pain, for the old order of things has passed away.” Missing our loved ones would presumably fall under the category of pain or mourning. Perhaps we will have no knowledge or remembrance of them at all. Perhaps we will have come to see things from a heavenly perspective and will understand why our loved ones not being there somehow glorifies God and will rejoice. We do know that we will finally see everything from God’s perspective, something which is impossible now. “Now all we can see of God is like a cloudy picture in a mirror. Later we will see him face to face. We don’t know everything, but then we will, just as God completely understands us” (1 Corinthians 13:12 CEV). In the meantime, we must accept by faith that what He says about Heaven is true and that we will have only joy for all eternity.
For a detailed description of Heaven, see Revelation chapters 21-22. Once we arrive in Heaven, we will be glorified and perfect. Our hearts, attitudes, and thoughts will be completely in agreement with God (1 John 3:2). If some of our loved ones are not in Heaven, we will be in 100% complete agreement that they do not belong there – that they are condemned by their own refusal to accept Jesus Christ as their Savior (John 3:16; John 14:6). It is hard to understand this, but we will not be saddened by the lack of their presence. Our focus should not be on how we can enjoy Heaven without all of our loved ones there, but rather on how we can point our loved ones to faith in Christ – so that they will be there.