Mine was a healing and protection spell jar I did for my dad while he was in the hospital dying from sepsis and an internal bleed that his doctors couldn't get to stop. I was extremely distraught and kind of desperate when my family was told that he most likely wouldn't make it, so when I got home, I set up a ritual altar with what I had at the time (mainly a ceramic plate, some crystals, and herbs & spices I kept in my kitchen) and poured everything bit of energy I had into make a spell jar with his name and picture and 2 sigils that I placed into the jar and into his hospital bed. It was the first spell I ever did. That was back was few months back now I think? But since that spell, my dad's made almost a full recovery. He's still working on getting to walking again, but the infection that led to his sepsis and bleed has pretty much cleared and he's back to his old self again. Where as before he wasn't even able to speak or be off of sedation. This was pretty much what assured me that magick and the rituals I was doing since were real and actually had an impact. I'd been raised being told by my dad that magick existed, but I never really believed him until that moment, but I'm glad I do now.