This is perfectly normal, anar floats upwards, touches the conv which converts it into dust, which falls down, is converted into anar...and the whole thing happens again.
Don't ask me why that happens, It's just weird.
It's like what I see at night! (My vision gets weirded out and I see colorful dots wiggle all over! [It scared me when I was young I thought I'd be trapped in them! X3 XD HAHAHA])