It tells us about humans, Individualism and how work defines humans and not their castes.
Valmiki who wrote 'Ramayana' was a 'daaku' (dacoit) in the dense forests but later in his life he decided to write this epic which made him one of the greatest authors and poets of all time. He wasn't from an upper caste but his work earned him a high seat among human beings.
Ved Vyasa who wrote 'Mahabharata' was also not from an so called upper caste. Although his father was a 'Rishi' (sage), his mother was a 'Machwaari' (fisherwoman). But the greatest epic of all times which summarises life in 13000 pages was produced by him.
Can you see caste threading a line between their works and thoughts?
Putting it straight, some people (aunties, uncles, senior citizens) say, "these modern kids don't know about Ramayana, Mahabharata...they don't know the true meaning of life..." as if they know everything about these texts.
But actually we see that they applaud and support this non sensical caste system on the other hand without knowing the caste, family and background of these writers whose works they read frequently and give 'gyaan' (knowledge which is not wanted) to some people (mainly the youth).
Someday if they come to know that they belonged to a so called 'nichi jaat' (lower caste) will they condemn these life changing books or won't agree with their approach to life?
So, I request you people to change your mindset first, and then talk about our literary heritage. And yes, I don't know each chapter of these two texts and also I haven't mugged up some 'Sanskrit' lines. I just know that caste system has no relevance and also these two texts teach us about non-discrimination on the basis of it and a true way of living. So, I can happily say that I know atleast a part of the true meaning of life.
Now please, put an end to this dirt.