This painting is a bit twisted, I admit. You see, the little quail has passed on from his earthly existence. His experience of death did involve seeing a bright light and walking towards its heavenly glow. He climbed the stairs to enter an enclosed glass case glorifying a small wood. The keys on the trees begin to turn and their leaves fell gently. His eyes scanned around a room filled with niches filled with terariums, all adorning creatures passed on, now to find that the afterlife is some kind of display case for a higher being.
Cracked egg and spilling guts is all symbolic of the release of the life cycle. Something more mysterious now awaits.