Sankharas and stream of consciousness
When ignorance and craving underlie our stream of consciousness, our volitional actions of body, speech, and mind become forces with the capacity to produce results, and of the results they produce the most significant is the renewal of the stream of consciousness following death. It is the sankharas, propped up by ignorance and fueled by craving, that drive the stream of consciousness onward to a new mode of rebirth, and exactly where consciousness becomes established is determined by the kammic character of the sankharas.
— “Anicca Vata Sankhara”, Bhikku Bodhi