Findings:

• Serenity Prayer
• Princess Serenity
• Serenity
• Queen Serenity
• a silhouette of death's serenity
• serenity (user)
• serenity now!
• These tender circumstances diffuse a dawn of serenity over the soul
• the serenity prayer (node_forward)
• a deep serenity

If you Log in you could create a "unshakeable serenity" node. If you don't already have an account, you can register here.