For me, Disruptr and Heaven Send are the main pieces of the album. Ki can get in there too, but, at least lately, I have been in the mood for these other two songs.
Disruptr is like a big punch in your face. The part in the middle when he screams "You don't forget the family, be a good man, boy" is so...transcendental. I don't know words to describe it.
Heaven Send is also wonderful. I never heard a song that could build such tension! Everything is perfect, the drums, the guitar, Devin's voice. And when he screams "FINITE, INFINITE!" and breaks into the "BUUUURN" part, it's just so...ah, I feel like I'm exploding into space, haha.
But I love the whole Ki album.
Coast takes you away. Terminal is just pure drifting into relaxation, just like Ki.
Gato and Trainfire are both really cool.
Quiet Riot is so emotional T_T and I can really connect to the lyrics.