AFAIK, you can’t access Mastodon content from Lemmy.
Mastodon can access Lemmy content but the experience is subpar because it doesn’t have the concept of threads about a topic/post like we have here. Mastodon is like Twitter—if you have used it. This conversation we’re having will show up as a thread without other context if you subscribe to this forum in Mastodon.
If you want to really try Mastodon, I’d suggest creating an account from https://joinmastodon.org and accessing it using a dedicated app. I use the Ice Cubes app.
Let Iran colonize the US.
Is this closer?