Can you explain the meaning behind Matthew 28:19?

I was having a conversation with my friend about different religious texts and beliefs, and the topic of the Bible came up. My friend mentioned Matthew 28:19 and how it is a significant verse in Christianity. I've never really delved into the Bible before, so I was intrigued and wanted to understand more about it. My friend briefly explained that Matthew 28:19 is a verse from the New Testament, specifically in the book of Matthew. However, I didn't quite catch what the verse actually meant or what its significance is. I want to learn more about the meaning behind Matthew 28:19, why it is important to Christians, and how it relates to their faith. I'm really curious to hear different perspectives on this verse and understand its significance in a deeper way.