Most of the very ancient stories or scripture past along or written down were from a time when mankind felt and thought from the heart linked into the pituitary gland through the Thalamus in the center of the brain more than the mind around it being active first as it is today.
The dreamtime is more about the intent and deeper feeling behind why something evolved or grew to be that way more than exactly how it occurred.
Its from a time when humans were ran from the heart up to the Thalamus up and down the reptilian cortex directly to and from the heart more than the way the brain has evolved into a much larger modern analytical tool separating heart from mind as a choice.
Its hard for many to see the old as anything other than total bullshit where as once that was the true way of simply being.