You and I were among those who used their agency to accept Heavenly Father's plan to come to earth, to have a mortal life, to progress. "We shouted for joy ... to have the opportunity of coming to the earth to receive bodies [for we knew] that we might become, through faithfulness, like unto our Father, God." Now we are here on earth, where opportunities to use our agency abound; for here "there is an opposition in all things." This opposition is essential to the purpose of our lives.