Depression can be averted by recognizing the root cause of its origin. When you are depressed, you feel uneasiness, you react to things or people harshly, and you do not behave properly either. In addition, you think a lot, especially negatively.
In 1888 a seal was discovered in Kayna near Zeitz (now Saxony-Anhalt) that Pfuhl believed to be Old Sorbian. Soon it fell into oblivion. In the paper, I argue that the inscription is, in fact, Polabian. The argument relies on one conjecture only and, therefore, has some plausibility to it. Archaeological considerations lead me to date the seal to the times of Otto III in the early Middle Ages. If this is true then the Kayna seal is the by far oldest monument of the Polabian language known. It would be evidence that the Ottonian mission too made use of written Slavic.