The main Observatory building is where you'll find the core of Jeremy's narrative. Inside, you'll encounter numerous light anomalies depicting his observations, his conversations with other characters (often over the phone), and his growing understanding of the 'Pattern' as a celestial phenomenon. Interact with the telescope and any scientific equipment you find.
Jeremy's story often involves his attempts to communicate with or understand the source of the 'Pattern'. His memories will reveal his theories, his frustrations, and his eventual acceptance of the inexplicable. Pay close attention to the details in his living quarters within the observatory, as they often reflect his personality and his dedication to his work.