Your personal horizon is like a big circle around you that represents all the things you can see and experience in your life. It's like a boundary that limits what you can see, hear, feel, and do.
Think of it like this: when you stand on the beach and look out at the ocean, you can see the water that's right in front of you, but you can't see the water that's too far away. Your personal horizon is kind of like that, except it's all around you instead of just in front of you.
Within your personal horizon, there are things that you know and understand, like your family, your school, and the things you've learned. But there are also things you don't know and haven't experienced yet. These things could be anything from traveling to new places, trying new foods, meeting new people, or learning new skills.
As you get older and learn more, your personal horizon expands. You'll be able to see and do more things than you could when you were younger. For example, as a child, you may not have known how to read, but as you learn to read, you can discover all sorts of new information that you didn't have access to before.
Your personal horizon is unique to you because nobody else has had the exact same experiences or knowledge as you. It's constantly changing as you learn and grow, and you never know what new things you might discover beyond your current boundaries.