What does spiritual condition mean?

In her introduction to Letters from Harry and Helen, written down through her daughter, Mary Blount White, Lucia E. Blount writes that should these letters appeal to anyone as true and be an inspiration to live the life of brotherhood more nearly, I shall feel it quite worth the effort it takes to share these intimate and dear messages from my own people [Harry and Helen].

Sister, do not tell anyone of this writing―it is better not. I only want to be of use and not to be made a show of, so cut out the publicity stuff and keep mum. 

Shucks, this is no holy place I have struck, so why affect the part? 

I am well, surely, and strong as before, but do not forget I have plenty to correct in myself.

It is me for my small boy these days. I sit for hours watching him, trying to see how and where to begin his instruction. He has to acquire poise and it is up to me, I imagine.

Papa's mind is divided, as part of it is on this side, forming his new body. It is a peach, too―tall and strong and sweet. 

This is a big world and a bully place to be in, believe me. 

Sin is not what you and I thought it was, but merely animal excess in life-force, spilling over, not soul-shrivelling, as we dreaded. 

Anyway, it looks so to me, but I have not begun to get a line on how the game stacks up here yet, being, as it were, a tenderfoot. 

All the tales you told me, utterly against my will, surely helped out. I am glad now you were so persistent about filling me up. 

Do not worry about writing what I am trying to get over. You cannot go far wrong, and if I see you getting beside the mark, I shall quit.

―Harry