What is the theme of the song?

This song lyrics is for questions 12 to 15.

Mama Don't Forget to Pray for Me
(By: Diamond Rio)

Well hello, it's good to hear your voice
I hate to call so late, but I didn't have a choice
I'm calling you from Dallas, headed for L.A.
I wish I had more time to talk, there's so much to say

Chorus:
No I can't forgot how I was raised
But I'm livin' way too fast
It's a roller coaster ride, up and down
My new job is going great, I'm headed for the top
I should be happy but somehow I'm not
Sometimes I think the devil has got me by the sleeve
Oh, Mama don't forget to pray for me

Tell me how is the weather?
Have you put the garden out?
Are the dogwoods bloomin' out behind the house?
No I'm not sick, there's nothin wrong, don't wake up Dad
I just thought of you and home and got a little sad.
(Back to chorus)

Taken from https://www.youtube.com

What is the theme of the song?