I personally am not sentimental, and I don't really understand how music changes peoples lives and what not. I think it is my lack of listening to lyrics.
I like music for it's melody. That's why I could probably like a song about the most offensive topic in the world if it sounded good and was catchy.

But then there's The Arctic Monkeys. I love every song they've made, from every album. Even their b-side album.
Particularly the Album titled 'Humbug'.
The mood of each song compliments one another. It might all feel the same but they are undoubtedly different, like each song is a different representation of the same feeling.

I still have yet to listen to the lyrics of any song but they just do it for me. I dare say, they make me feel like I have a heart for taking music not just at face value.

I was wondering if anyone has a band that they enjoy wholeheartedly, or have made an impact on them or have healed them in anyway?

My favourite band is a Dutch metal band called Within Temptation (they're not heavy metal). Unlike you, I listen to lyrics, but I like the way they sound too. My favourite song is All I Need.

Ooh I'll have a listen c:
I knowww, I wish i did listen to lyrics but yeahh u_u