The waterfall represents:  1) the fall of man, and  2) the baptismal cleansing.
The apple being the symbol of original sin
and the unclean heart which sheds tears, is saved by the hand of Jesus.
As the teardrop touches His hand, it is warmed and saved by His Grace.
 

Search me, O God, and know my heart:
Try me, and know my anxieties;
And see if there is any wicked way in me.
And lead me in the way everlasting.  Psalm 139:23, 24

Create in me a pure heart, O God,
and renew a steadfast spirit within me.  Psalm 51:10
 

The relationship between the objects is quite clear.
Painting the objects alone does not constitute an image.
The totality of the painting is the image within which there is more than one object.

The image is not an idea.
It is a radiant node or cluster from which and through which and into which
ideas are constantly rushing.
This painting is a haiku moment:
that moment of absolute intensity
when the artist’s grasp of her intuition is complete,
so that the image lives its own life.
It is a painting without ideas, though there may be ideas in it.

“What governs such an art is not a concept
or logic, feeling or rationalism . . .
Even if we find an idea in it, that idea
is something diffused throughout the
entirety of the art product, like the air.”
Isoji Aso

A successful “intuit” painting renders then a speaking, vibrant image.