User blog comment:Xilinoc/Ch. 556 - The Wolfsbane/@comment-1332195-20131107194701

Something occurred to me today; you know how Kaien when talking to Rukia way back when always refered to 'heart' as the bonds between friends et al. Maybe this is the heart that Sajin was throwing away; for temporary humanity, I dunno when he returns to wolf form, he doesn't remember anything at all and is basically a mindless beserker. Possible?