Grandpa's Falling Star

I have another story to share on which I'd very much like your opinion. I don't think inside the box and believe that coincidence exists as well as the paranormal. In this experience, I don't believe it to be coincidence, but I would like to know your thoughts on it.

It happened 13 years ago. My grandfather had passed away. It was the day after his passing. My mother, uncle and aunt were all at their own home, which is important info in this story. It is also important to know that my grandfather was very interested in astronomy and stuff.

At midnight, my uncle saw a very big falling star. He called my mom up and told her about it. At that specific moment, my mother was writing a poem for the eulogy. The last words she had written down were "like a falling star". My mom spoke to my aunt (her sister) the next day and wondered if she had experienced anything related to a falling star. She couldn't think of anything in particular, but her husband said that they had been talking about getting a sign from my grandfather at just about midnight that night.

It really sounds like a coincidence but thinking about my grandfather's hobby, I have my doubts. In addition, the day after he passed away, me, my sister and cousins (the grandchildren) were all together in the backyard of my grandparents house and we saw the most beautiful colored sky with big packs of clouds we had ever seen. And we all felt...well, special. We had a certain feeling of comfort and I think we all felt it. We stared at it silently for I don't know how long. That's how I know we all must have felt it and my sister told me she also had the feeling.

So coincidence? I don't believe so. To this day I still have the feeling that my grandfather watches over us. I consider him to be my guardian angel.