Animals also...
Animals also, in respect of their physical and natural being (not as beings possessing cognition and mind), like plants move directly towards their end in the natural world. But in their case, in most of their activities, the means of nature do not suffice to direct animals towards their goals.
That is why they employ their mental and cognitive faculties to achieve their ends and in fact there emerges a kind of harmony between physical nature (which is unconscious) and the mind which functions in a manner enabling nature to achieve its ends. The mind is however directed to achieving a series of ends which are supposed to be different from the ends of nature and one imagines that the harmony between the two is accidental.
The cognitive nature of man and animal is such that when they perceive and conceive an object there arises a desire and appetite for it as [an expectation of] pleasure in attaining it and of pain in the failure to attain it. This is followed by the motive to obtain the pleasure or to avoid the pain. For instance, man feels hunger and with his past experience'of the pleasure in eating food he seeks food in order to obtain that pleasure.
But at the same time in the process of this act nature too attains its end, for the body needs food in order to replace the materials it has consumed. Eating serves both the ends, the conscious purpose of pleasure is attained and at the same time nature also satisfies its need. Hence, the question arises: Are these two acts unconnected with each other and is their coincidence something accidental?
Is it possible for the case to be otherwise, that is, a person might feel pleasure in eating stones while his stomach requires some other food? Is it an accident that delicious foods which bring pleasure to one who eats also helps satisfy the nature's needs? Or is it the case that there is no accident involved here and there exists a kind of harmony between the two, where one is primary and the other is secondary?
In case there is no accident involved here, is the conscious desire to obtain pleasure and to avoid pain the primary principle which requires an apparatus that may cooperate with it for the end of pleasure by digesting food and absorbing nourishing substances? Or is the case quite the inverse and it is nature which constitutes the primary principle, having subjugated the conscious mind to its service. Undoubtedly, there is some kind of harmony between the natural and conscious ends.