There seems to be two main aspects to our impulse towards wholeness...
First, it is the intuition or sense of the field of seeing of seen, inherently absent of I. This field is already and always whole, or more accurately free from wholeness and fragmentation.
Then, there are the processes at work in the world of form, specifically - in all living organisms, the self-maintaining, self-healing and self-transcending processes.
And a psychological aspect of this process of self-organization is the dislike of suffering and draw to happiness and freedom from suffering. Disease at a physical level is often uncomfortable, so we seek health and wholeness there.
It is the same with dis-ease at a psychological level. It comes from a sense of separation, being finite in space and time, and from the basic sense of I and of I and Other, so there is a natural impulse to find a resolution to it, and we do this in many ways.
We seek healing and a sense of connection on a psychological level.
We notice, at first not even consciously, the inherent painfulness of a sense of I and Other, and We and Them, so we move along the path of egocentric to ethnocentric to worldcentric to planetcentric, widening the circle of who we see as us.
And at some point, we start the process of shifting our center of gravity from the seen (our human self) to the seeing (pure awareness, witness), to the field of seeing and seen, inherently absent of I, awakening to itself.
The mirroring tendencies
At the same time, there are several mirroring and complementary tendencies.
First, of the field of seeing and seen to forget itself, to take itself as only a segment of itself, as this human self.
Then the inherent tendencies in the world of form towards disintegration, falling apart, accidents, malfunction.
And also the inherent tendencies of the mind, when operating in the context of a sense of I and Other, to create trouble for itself, to knot itself up and create a sense of drama through beliefs, and often through a complex set of contradictory beliefs.
Game of separation and finding itself
It is all part of the game the field plays with itself, first of forgetting itself, creating a sense of I and Other and experiencing the drama there, then of seeking itself through wholeness, and finally realizing the absence of I anywhere.
Both tendencies are part of the game, part of the drama, making it richer and more varied. One could not be without the other.