It's not mambo jumbo but sacred knowledge, experiential wisdom and operative gnosis.
Modern humanity of the Kali Yuga, in the name of "rationalism", has replaced the sky with an artificial ceiling it likes to paint on with the worst of philosophies - Plato, Aristotle, Ibn Sina, John Scot Erigena, Descartes, Bacon, Kant, etc they were all doing spiritual shirk (association) by degrading the Essence of the Almighty through their virtual crypto intellectual construction, to the extent that today, in an era where the ignorance of metaphysics has never been deeper, those who have spend more time on their iPhone than in sacred books feel the necessity to give their opinion on God, angels and so on - talking of "freedom" while institutional slavery to capitalism has never been so profound, with humanity transformed into consumerist zombies.
The point is that Adam and Eve are both humans and symbols of humanity, in the same way that when you look at the dark sky in the night the skies are either physical objects or poetic inspirations ; the whole of Qur'an is staged in such way that everything becomes symbolic. That's not the issue.
The issue is why to preoccupy with such questions ? When someone gives you the destination and even the boat, would you ask what's the median height of the fishes under the waters ? Modern man has everything of the child minus the pristine innocence (at least the child sees everything as a "miracle", or ayat as the Qur'an would say).
I'd advise all my Muslim brothers and sisters to read the great shuyukh of the past or more modern ones like René Guénon/Shaykh Abdal Wahid Yahya, Frithjof Schuon/Shaykh Isa Nur ud Din and so on. You'll learn how everything produced by modernity, its epistemological dogmas and anthropological sacraments, are pure jahilliya (ignorance).