Here's the text with automatic capitalization without changing the punctuation marks:

The echo returned
The cave breathed slowly
Far slower than you or I
A slowness that felt lonely
You and I were bugs
On a ribcage ancient and grand
In the mud of a jungle where lost planes land

Burning juniper, burning sage
Some aromatic healing
I thought I should more often
Consider insects' feelings
The smoke entered my lungs
And fell like waterfalls do
Fell as I did for you

I was not alone
In breathing it in
But you expelled it just too soon
You're a contrarian thing
Like sand blown off a dune
The space between me and you
Filled with shapes threatening and lewd

From the cave spilled a clearing
With a river running through it
Two monks were there competing
To see who's the better Buddhist
Planting flowers for the bees
Cicadas dot the trees
Biding their time before they leave

As the day began to wane
I lingered on the losing
The air so dense with sound
Would someone tell those monks to cool it?
With such little light left
To find shelter or a fire
Should our concerns not be higher?