What does this mean: "Poem For My Father" by Eric Chock?

Question

I lie dreaming when my father comes to me and says,I hope you write a book someday.
He thinks I waste my time,but outside, he spends hours over stones, gauging the size and shape a rock will take to fill a space,to make a wall of dreams around our home.
In the house he built with his own hands
I wish for the lure that catches all fish or girls with hair like long moss in the river.
His thoughts are just as far and old
as the lave chips like flint off his hammer,
and he sees the mold of dreams taking shape in his hands.
His eyes see across orchids on the wall,
into black rocks, down to sea,and he remembers that harbor full of fish,
orchids in the hair of women thirty years before
he thought of me, this home, these stone walls.
Some rocks fit perfectly, slipping into place
with light taps of his hammer.
He thinks of me inside and takes a big slice of stone,
and pounds it into the ground to ma

Answer 1

They BOTH think the other is wating time when in fact they are BOTH building their dreams a stone and a memory at a time. they somehow KNOW that but are reticent to actually adimt it to each other OR to themselves.

BB,
Raji the Green Witch

Answer 2

I think it is a boys love for his father, and admiration for what he does.