In the Krishna origin story, the role of the prophecy cannot be overstated. It is what drives Kamsa's actions towards Devaki and Vasudeva. The divine birth of Krishna, with all the signs and wonders, is another crucial element. Vasudeva's journey to Gokul is full of mystery and divine intervention. In Gokul, Krishna's life among the simple people, his learning and growing, his relationships with his foster parents Nanda and Yashoda, all contribute to the origin story. His early displays of divinity, such as his feats of strength and his wisdom even as a child, are also key elements that mark him as a special being from the very beginning.
One important element is the prophecy which sets the whole story in motion. It makes Kamsa act the way he does. Then, there's Krishna's miraculous birth. The fact that Vasudeva was able to cross the flooded Yamuna river with the baby in his arms is also significant. His upbringing in Gokul, away from the danger in Mathura, allowed him to grow into the divine figure he was meant to be. His interactions with the people in Gokul, like the other cowherd boys and the gopis, are also key parts of his origin story as they shape his character.
The key elements are Devaki's pregnancy, the prophecy about Kamsa being killed by her eighth son, Krishna's birth in prison, Vasudeva's escape with him to Gokul, and his upbringing by Nanda and Yashoda.