@igm,
The thread asks: Does a rice seed CAUSE a rice shoot? Obviously, one cannot have a shoot without a seed just as we are unable to have a man without a boy. But we don't SEE causes, we THINK them. We don't think that boys cause men, but we know that they are essential antecedent conditions. I know my sitting here typing this requires countless antecedent necessary (if not sufficient) conditions: e.g., gravity, blood pressure, a solar system in balance, electricity, ad infinitum.
What are the sufficient conditions? We can scrutinize this situation and, at least in principle, list them and after complex examination and heroic patience list all of the conditions for them. If we continue this process the causall picture would fan out until we go BACK in time and OUT in scope to ancient preconditions for this original chosen moment. How far back and out? Is that answerable, or even sensible?
When I a see a man, I'm also thinking "a man"; I'm generating a concept. The man that exists today is an outgrowth of the man yesterday, and he follows the man before yesterday (btw, these calendrical units are artificial of course), all the way back to the baby he was at one time (and before that). But it was a CONTINUUM, not a chain of discreet causes and effects. We make up effects and causes for purposes of "explanation" but they are not very accurate as descriptions of the process of that man's biography.
We seem to not be able to describe acutal processes. The flow of reality is not easilly captured by static concepts, so we falsify that reality into a collection of things, like causes and effects.
And then we tacitly reify these "things" as the building blocks of a deterministic Reality (or Universe). These "things" serve as useful fictions for some purposes but, like so many false but useful notions (self or ego is one of them) we end up deluded when it comes to philosophical reflection. Mystics meditate in order to get glimpses of the world without such fictions; that is to say they adopt a perspective that acesses Reality more as it is.
Good critiques of causality and the self-as-agent-of-actions are provided by David Hume and Fredrik Nietzsche.