The Escape from the youth

Hi, I was just wondering if anyone knew how to relate the central topic of belonging to this poem: The Escape from the youth
I just a general overview of how it relates to belonging


My father's discipline closed me like a box.
A hardness hammered shut the lid.
For fifteen years, no matter what he did,
I was unreachable. Venom sealed the locks.
Neutral beauty kept me company. Walking
through the neighbours' cattle, from moving skies and trees
I learnt the slower, vaster intimacies.
Avoiding the world of men, I stopped talking,
except intensely to myself. Rumours
of happiness sometimes seeped outside the box.
'Untrue!' I howled, and double-checked the locks.
In the dark, poetry grew like a tumour.
When the poems were big enough to break
their way out, dragging me behind, I saw
my father's face, more bitten than before,
a soft fist eaten by love, impossible to hate.
There is no forgiveness now, nor the need.
Silence bred rich fruits - a known self, those skies -
for which I thank my father. Amnesia lies
behind our peace. Neither of us dares to bleed.
Tony Lintermans

Please get back to me, that would be great!