hit home for sb的理解与翻译

This hit home for me as I was sitting with my 2-year-old grandson on a sofa over the Spring Festival holiday.

这是2022年新高考全国卷2阅读理解B中的一个句子。不太理解句中hit home for sb 的意思。查词典：

hit/strike home：to become very clear and obvious in usually a forceful or unpleasant way（通常以强迫或令人不快的方式）显示出来，暴露出来

但用它套在句子中也不太好理解，全句的翻译也不会，请教柯帕斯英语网的专家老师！谢谢！

附2022年新高考全国卷2阅读理解B全文如下：

We journalists live in a new age of storytelling, with many new multimedia tools. Many young people don’t even realize it’s new. For them, it’s just normal.

This hit home for me as I was sitting with my 2-year-old grandson on a sofa over the Spring Festival holiday. I had brought a children’s book to read. It had simple words and colorful pictures—a perfect match for his age.

Picture this: my grandson sitting on my lap as I hold the book in front so he can see the pictures. As I read, he reaches out and pokes (戳) the page with his finger.

What’s up with that? He just likes the pictures, I thought. Then I turned the page and continued. He poked the page even harder. I nearly dropped the book. I was confused: Is there something wrong with this kid?

Then I realized what was happening. He was actually a stranger to books. His father frequently amused the boy with a tablet computer which was loaded with colorful pictures that come alive when you poke them. He thought my storybook was like that.

Sorry, kid. This book is not part of your high-tech world. It’s an outdated, lifeless thing. An antique, Like your grandfather. Well, I may be old, but I’m not hopelessly challenged, digitally speaking. I edit video and produce audio. I use mobile payment. I’ve even built websites.

There’s one notable gap in my new-media experience, however: I’ve spent little time in front of a camera, since I have a face made for radio. But that didn’t stop China Daily from asking me last week to share a personal story for a video project about the integration of Beijing, Tianjin and Hebei province.

Anyway, grandpa is now an internet star—two minutes of fame! I promise not to let it go to my head. But I will make sure my 2-year-old grandson sees it on his tablet.