The title of the poem is ‘My Box’.

What do you think an alternative title could be?

What do you think the poem is mainly about?

My box is made of golden oak,
my lover’s gift to me.
He fitted hinges and a lock
of brass and a bright key.
He made it out of winter nights,
sanded and oiled and planed,
engraved inside the heavy lid
in brass, a golden tree.

In my box are twelve black books
where I have written down
how we have sanded, oiled and planed,
planted a garden, built a wall,
seen jays and goldcrests, rare red kites,
found the wild heartsease, drilled a well,
harvested apples and words and days
and planted a golden tree.

On an open shelf I keep my box.
Its key is in the lock.
I leave it there for you to read,
or them, when we are dead,
how everything is slowly made,
how slowly things made me,
a tree, a lover, words, a box,
books and a golden tree.

Is the poem mainly about a box or something else?
Could the poet be using a form of imagery in the title?