R&R please.

One leaves no room for more

A shuttered window, bolted door

Lost in itself, folding into nothing

Alone, there's no rushing

No conflict, save the devils in your heart

Two leaves love, friendship

Truth, losing fragile grip

Together as two

A bond, opened, but loss undisclosed

Three's company

I see three

Within me

Four is a single word, lost in shadows of those looming before it.

Only half show the last grip of existence.

It all returns to one.