Why is XLM not showing up in Coinbase?

Could you please explain why XLM is not appearing in my Coinbase account? I've heard so much about its potential in the crypto space, and I'm really keen on adding it to my portfolio. But despite searching through my account, I simply cannot find it. Is there a specific reason for this? Or am I missing a step somewhere? I'd really appreciate it if you could clarify this matter for me. I'm a bit new to the crypto world and still navigating its intricacies, so any help you can provide would be greatly appreciated.