That's the wonderful thing about drama and writing and fiction: it's this wonderful shared experience that we all have. We can see into each other's lives.
For a writer, they say write what you know. As a performer, you find it in yourself, in your heart. You relate to the character. You try to live it, try to have it be real for you.
And I haven't read a lot of blogs but if someone writes about what they care about I'm sure it's interesting.