So, the great test of life is to see whether we will hearken to and obey God's commands in the midst of the storms of life. It is not to endure storms, but to choose the right while they rage. And the tragedy of life is to fail in that test and so fail to qualify to return in glory to our heavenly home.
Satan will always work on the Saints of God to undermine their faith in priesthood keys. One way he does it is to point out the humanity of those who hold them. He can in that way weaken our testimony and so cut us loose from the line of keys by which the Lord ties us to Him and can take us and our families home to Him and to our Heavenly Father.