This forest used to be mentioned in the stories that your grandmother often told you when you were a kid. She did mention that there was a portal in the forest that must be activated to escape from there if anyone gets trapped in the forest. You had least expected that you would one day find yourself trapped in that forest that you thought was just a myth. You do see some notes, items that you can pick up and some animals and birds that you can interact with. Only time will tell if these things are enough for you to use in order to activate the portal and escape the forest.