"It was a big, big world but we thought we were bigger"(Graham 4). This is symbolic towards how they thought they were more important, and they didn't think anything the world could throw at them stood in their way.
"I always had that dream like my daddy before So I started writing songs"(Graham 11-12). This is a flashback and reference to his dad about how he tried to make it as a musician and the speaker has that same aspiration.
"I was writing about everything I saw before me"(Graham 23). This is an idiom because he (the speaker) is learning about life and what to do in different situation.
"My woman brought children for me so I can sing them all my songs And I can tell them all my stories Most of my boys are with me Some are still seeking glory"(Graham 29-33). This is a metaphor for how he has settled down instead of staying a musician seeking fame.
"Soon I'll be sixty years old, will I think the world is cold, or will I have a lot of children who can warm me"(Graham 43-44). This is an idiom because he won't think the world is cold, he means that he may feel depressed or that he is an outcast
In the song "7 years" by Lucas Graham, the speaker always speak in a nostalgic way when talking about the past, but when he talks about the future, he has a hopeful tone. Some diction to support the nostalgia is dreams, glory, bigger, goals, and some diction to support the hopeful tone for the future he says still roaming, remember life, better, and warm.