A possible concise summary is:
The speaker is a host of a podcast that features paranormal stories sent by the listeners. He introduces four stories in this episode:
- The first one is about a group of students who witnessed chairs moving by themselves in a mixing room of their university.
- The second one is about a cat that sees and talks to an invisible entity in the patio of an apartment, which the owners suspect is a goblin.
- The third one is about a girl who had sleep paralysis and saw the spirit of another girl who died in a flood and wore her baptism dress.
- The fourth one is about a boy who had nightmares, out-of-body experiences, auditory hallucinations and bite marks after staying in his grandparents' old house.
Some possible key facts extracted from the text are:
1. The text is a transcript of a podcast about paranormal stories sent by subscribers.
2. The first story is about a paranormal event in a university classroom where chairs were moved by an unseen force and captured on camera.
3. The second story is about a woman who experienced sleep paralysis and felt a presence in her apartment that her cat could also sense.
4. The third story is about a girl who saw the spirit of another girl who died in a flood and wore her baptism dress.
5. The fourth story is about a boy who had nightmares and hallucinations related to his grandparents' house and saw a woman bite his arm in his dream.
6. The podcast host thanks the subscribers for sending their stories and invites them to follow him on social media and subscribe to his channel.