Cast out

Mining the untruths
  where did they come from
How have they become
  lodged as a truth inside
Because when we dig
  these up we find a nugget
Of fools gold, not true
  not worth what it was
Yet we took it in as
  a part of who we are
Only to find it is not
  only words echoed from
The past and it has
  become stuck we just
Need to cave it in
  in order to go forward
Then we will clear it
  and be able to see light