Hidden or secret messages is a message that can’t be seen by the eye when you first look at it. Actually, you must interpret the message by decoding the message. This can be done by the few clues that are usually given either in the message or knowledge already known. Some message are hidden in pictures. Sometimes the clue is a word or phrase.
When it is reversed, the message may be made known. Some messages are not intended to be figured out by everyone. It takes minutes or hours to decode the message. Once one part of the message is decoded, then you usually can decode the rest. In the message, the word “shnoppy” is explained as part of a phrase.