Related Clues:

• Calm, so to speak
• Librarian's request
• Sailor's nightmare
• Quietly composed
• One with the universe, so to speak
• Meditator's school
• Buddhist school
• Not having big waves
• Free from worry
• Partner of peace
• Storm preceder?
• 0 on the Beaufort scale
• ''Path of enlightenment'' discipline
• Devoid of wind
• Hard to rattle