Answer the following questions based on the song lyrics in Activity 14. Changes (By Justin Bieber) Some days I move like water Some days I burn like fire Some days I wanna push further Some days I wanna do nothin' And I just wanna be the best of me Even though sometimes we might disagree So that I can be the best for you That's all I wanna do I'm goin' through changes I'm goin' through changes Though I'm goin' through changes Don't mean that I'll change Sometimes I'll go to sleep early Sometimes I can't close my eyes Sometimes I smile like it's all good Even though there's pain underneath it I just wanna be the best of me Even though sometimes I forget to breathe So that I can be the best for you That's all I wanna do I be goin' through changes I'm goin' through changes Though I'm goin' through changes Don't mean that I'll change Yeah, I'm goin' through changes I'm goin' through changes (Ooh, yes I am) Though I'm goin' through changes (That's right) Don't mean that I'll change, woah La-da-da-da-dum, la-da-da-da-dum La-da-da-da-dum, la-da-da-da-dum, no La-da-da-da-dum, la-da-da-da-dum I'm going through changes No, I ain't changed, yeah Uh, people change, circumstances change But God always remains the same (Adapted from: https://www.azlyrics.com/lyrics!justinbieber/changes.html (March 30, 2020)) "Even though there's pain underneath it" (Verse 4) What does 'it' refers to?