|Now think of a cone.|
You, here & now (or you, there & then) is represented by the point of the cone.
The volume of the cone above 'you' represents the myriad causes that preceded you, (being you), being here, being now.
Every single one, every event, comprising the myriad causes is essential to enable you to be here, now !
If just one single event of the myriad events did not happen, then you would not be you, here, now !