Christians are to test the things of the world to see if they are of God.
"Explore" sounds more like indulging in the things of the world, which Christians should abstain from.
Zen Buddhism is not of God. The goal of a Christian is to fill the mind with the things of God, to commit God's word to his heart, and not to empty the mind or attempt to enhance the "experience of living".
Christians are temporary pilgrims. We are of another nation. We are do not belong to this world.