Heaven is the place where God lives and the future home of those who do God's will and follow the teachings of Jesus Christ. The hope of our Heavenly Father and Jesus Christ and the purpose of life on this earth is to teach us and prepare us that we, along with our families, might live with Heavenly Father and Jesus Christ eternally.
After we are resurrected we will be judged and rewarded for the things we have done in this life.
Jesus Christ taught His Apostles that in His Father's house are "many mansions." Our loving Heavenly Father is anxious to reward all of His children according to their obedience to His commandments and their willingness to follow the Savior.
Those who do these things and are worthy to return to the presence of God and Christ become "heirs of God, and joint-heirs with Christ" of all that the Father has. They will return to live with Heavenly Father and with their families in His eternal glory.
Those who choose not to follow our Heavenly Father and Jesus Christ will receive a reward according to what they have done in this life, but they will not enjoy the glory of living in the presence of God.