Possible Clues:

• Prepare to dive in
• Pre-baptism instruction?
• Try to calm down
• Calming advice needed before free diving?
• 'Stop ... don't panic'
• Look before you leap -- advice to diver without aqualung?
• Diver's "Stay cool!"?
• Prebaptism instruction?
• 'Easy does it!'
• 'Relax!'