Non-religious but spiritual

I can't find the post you quoted, so I'll use your post to address the quotation. The term "the One" is misleading (by implication) and the following conclusion that being part of the One is therefore also misleading (by implication).
The post was my OP. How can these forums be debate if people ignore the OP? It seems like the people complaining about specific words haven't bothered to assimilate it, even if they read it. There were qualifications and explanations. Perhaps not perfect, but words aren't perfect. I noted in that OP that people tend to put their own interpretations on words and in a later post noted the tendency debaters have to redefine words to suit their arguments. It is a logical fallacy made easier when context is ignored as seems to be the case with the objections here.
The universe is the One. As such I am a part of the one, along with everything else and collectively, everything is the One.
Is our heart a separate thing from our lungs?
No-one responded to this but I expect all would accept that both are a part of the one that we call a human being. In mathematical terms, the heart set and the lung set are subsets of the human being set. The One is the set of all sets. Reverence is probably another word that evokes a knee-jerk response in people who feel they need to defend an atheist position. Defined formally as "deep respect for someone or something" and perhaps mixed with awe is the foundation of my view of the world. The processes that brought about this world we live in are awe-inspiring to me and go so far beyond the capabilities of humankind and even what most of humankind can comprehend that such awe becomes "spiritual". Not because it involves magic or supernatural but simply because it is so far beyond present human capabilities. It doesn't have to involve a plan or divine intervention. It is a greater comfort than either of these things to know that I am still a part of something (the natural universe) that brought me into existence and nurtured me and my ancestors, even before humanity. I am not a part of a plan or a goal. Just a stepping stone to something that the processes which created me will find more desirable - and I even find comfort in that, despite the notion that my kind are very unlikely to exist forever.