Quote:the spiritual element of a person, regarded as immortal.
No mention of God. I know that the word spiritual has religious connotations but even here you can have religion without a god. Ask the Dalai Lama.
So, to sum up your honour I put it to the court that you can be an atheist and also believe in a soul.
Obviously an atheists belief in the soul would be a million miles away from the theists version of a soul and would no doubt be based on the notion that it was an integral part of the nature of the Cosmos, but, atheist and soul are not necessarily mutually exclusive.