Well said. Couldn't agree more.
And just to add to that your assertion that we should "master the mind," a prudent individual also incorporates a mastery of the vehicle which transports your mind through space...the body. So many people are ignorant (willful or otherwise) about the harmful things they do to their bodies on a daily basis - whether by COmmission or Omission. Who wants a mind trapped in a body that has been hamstrung, or even damaged, by a careless, reckless, thoughtless lifestyle? Nobody I know. Peace to you and yours.
Right? Destruction of the body is apparently something we somehow like and choose... Peace to you, friend!