Lyric discussion by amunkey 

TBone732, i think the lyric are talking about how when people are homeless they don't always have the mental ability to cope with it, and so thoughts enter his head (they come out of nowhere and sort of float around - like butterflies) but he can't deal with them and doesn't understand them and so he "chases them" out of his head...there is an "even flow" of thoughts in and out of his head...thoughts enter his mind, and leave unchanged because of his inablity to cope. that is just my view...

not always, but obviously in this case

@amunkey i think even flow is karma, his homelessness is payback for bad things he did

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