Know one can really understand the spiritual inclinations of the Mayan, or any other past culture, because we cannot experience what they experience.
Can we agree that when we sleep, there is no memory of the experience of sleep?
Can we agree that when we dream, there is memories, all be it sometimes fleeting of the experience?
Can we agree that when we are not sleeping or dreaming, we experience wakefullness?
We could discuss these three states of consciousness and have a common understanding of the nature of each state. We can describe each state or experience of each state as being different then the others, yet each of the three states of being is known to all of us.
So if we were to study dreaming, since we all have the experience we could write based on our experience plus we could recognize other peoples experiences in light of our own. Just as we are not surprised when someone tells us a strange dream, we recognize the nature of dreaming. But if you were a person that has never experienced dreaming, you could not recognize the nature of dream state and judging only by your experience, deny that dream state existed.
There are 7 recognized states of consciousness;
Sleeping state of consciousness
Dreaming state of consciousness
Wakefullness state of consciousness
Transcendental state of consciousness
Cosmic state of consciousness
God state of consciousness
Unity state of consciousness
The mystics tell us that these states of consciousness exist and that each state of being is as different one to another as sleeping is to wakefullness.
If the Mayans left a spiritual sign post, it can be recognized by its nature.
Just as experiencing deeper states of consciousness provides the experience for a person to recognize the nature of the meanings within spiritual texts and sign posts.