How do you interpret this poem ?

"So summer is gone,

leaving no epitaph.

It's still warm in the sun,

only that's not enough.

All that true could have come,

like a five-fingered fluff.

Folded into my palm,

only that's not enough.

No evil was slighted

in the good aftermath.

World was festively lighted,

only that's not enough.

Life forever was tucking,

caring, making me laugh.

I was really lucky,

only that's not enough.

No leaves ever seared,

no limbs broken rough.

Day, like glass, washed all clear,

only that's not enough..."

/1967 Arseny Tarkovsky/

***

/literal translation/

"Now the summer has passed.

It might never have been.

It is warm in the sun,

But it isn't enough.

All that might've occurred

Like a five-fingered leaf

Fluttered into my hands,

But it isn't enough.

Neither evil nor good

Has yet vanished in vain,

It all burned and was light,

But it isn't enough.

Life has been as a shield,

And has offered protection.

I have been most fortunate,

But it isn't enough.

The leaves were not burned.

The boughs were not broken,

The day clear as glass,

But it isn't enough."

- Arseny Tarkovsky, " So summer is gone "