if as you say:
"without seeking any help/reference from any existing religion these days, word of mouth or book references..." we have to find our own path.

You're quite right of course in this respect, so I'll share this point of view: People that do not believe in a god are more moral than those that have a default, not my responsibility, god back-up. The quote is from the film maker David Cronenberg:

"It was apparent to me that religion was an invented thing, a wish-fulfillment thing, a fantasy thing. It was much more real, dangerous, to accept that mortality was the end for you as an individual. Murder...(is a) physical act of absolute destruction because you're ending something, a body, that is unique. That person never existed before, will never exist again, will not be karmically recycled, will not go to heaven; therefore I take it seriously."

Those of us that rationally don't believe tend to treat life as a very serious and unique time which impacts on our morality to a great degree; we don't need a hereditary acquired mental disorder to find our way in, and make sense of, life. Sorry if that sounds harsh, and its not pointed at anyone personally as I understand its the greatest benignly(in most circumstances) intended hoodwink in the history of our species, but i call it as I see it.

I don't go to mythical places with strange men.
-- Douglas Adams, The Long Dark Tea-Time of the Soul.