Reality (i.e., the truth) is that there is a God in heaven. Reality is that He made us and we are accountable to Him. Reality is that this God has spoken and what He says matters--eternally. Reality is that without His salvation, we are doomed to ete...
Meditation is not hard to understand. Anyone who knows how to worry knows how to meditate. Worriers are skilled in the meditation process but are meditating on the wrong kind of thoughts.
This is the real world, and only a believer walking in fellowship with His Creator and Redeemer can understand it. Everyone else is the world is experiencing a 'break with reality'.
Wisdom is not having God's perspective of the whole matter before us, but having God's perspective about what next response will honor Him while keeping us still usable to Him.