Soul is subject to it self non can creat it non can erased it so wats subject ?

well we should know that soul should be purified n if it is not then we should hv to rebirth thats belief of some relegionn i think its fact coz lot s soul n diff kind of thinking,attitude,laughter,kindness,ange… how it apear on face ts subject of deep thinking we cant expose it wid few words or few feelings /so how to search it ? n we r not get in deep thinking of this /???