Related Clues:

• Not nervous
• "Put a sock in it!"
• Peacefully silent
• ''___ and the Art of Motorcycle Maintenance''
• It may precede a storm
• Give a shot, perhaps
• Quell
• Make calm
• Halcyon
• Buddhism branch
• "Shh!"
• Pre-storm status
• Storm preceder, it's said
• Like some gardens
• A way to enlightenment