Blue and gold - just like a precious secret

Secrecy is the practice of hiding information, an identity or a special skill from certain individuals or groups who do not have the 'need to know', perhaps while sharing it with other individuals. That which is kept hidden is known as the 'Secret'.
Think of the secret of hidden faces under the masks during the carnival in Venice, the secret skills of a famous Jazz musician or the hidden message in a floating bottle ...

Secret