Couple in amniotic bubble (The Garden of Earthly Delights detail)
From The Art and Popular Culture Encyclopedia
Some historians have stated that what appear to be cracks in the sphere, may forecast the fragility of joyful passion.
"Perhaps, as it comes from a flower, and has part of the flower inside it, it should be seen as organic, a mixture of the vegetable (flower / fruit) and the animal (womb) with the human figures like the seeds, - human erotism projected onto the cycles and forms of nature, and vice versa." (Rumsey)