Jonathan Heimes became a deeply moving symbol for SV Darmstadt 98 and for many people far beyond football. As a young supporter, he faced cancer with extraordinary courage and inspired others through his determination and openness. His message, often remembered through the words 'Du musst kämpfen,' became a lasting call to face hardship with strength and hope. Jonathan Heimes passed away in 2016, but his story continues to shape the emotional identity of the club. At Böllenfalltor, his memory stands for solidarity, humanity, and the idea that football can create bonds that extend well beyond the game itself.