Keep Calm & Solve (Medium Level)

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Across
  1. 4. Peaceful agreement
  2. 5. Mental stability
  3. 6. Comfort in distress
  4. 10. Concentrate on task
  5. 13. Mental calmness
  6. 14. Peaceful state
  7. 15. State of calm silence
Down
  1. 1. Peak of tranquility
  2. 2. Freedom from agitation
  3. 3. Free from disturbance
  4. 7. Self-control under stress
  5. 8. Aware and present
  6. 9. Absence of motion
  7. 11. Clearness of thought
  8. 12. Ability to wait calmly