Photo of a keyboard with one mysterious symbol in the form of a heartPhoto of a keyboard with one mysterious symbol in the form of a heart
Beautiful brown-haired woman with a mysterious lookBeautiful brown-haired woman with a mysterious look
Colored lights with a blur effect, mysterious lightColored lights with a blur effect, mysterious light
Mysterious night forest on the background of a full moonMysterious night forest on the background of a full moon
Нечто неразгаданное, ещё не познанное. Нечто скрываемое от других, известное не всем, секрет.