The “second” implies a cycle, echoing Slavic myths of renewal through destruction (e.g., floods in Russian folklore tied to Perun or Morana).
Her lightning and storms put her next to Perun of the Slavs, Zeus of the Greeks and Thor of the Norse.
Perun: A widely revered god across all Slavic lands, associated with lightning, the sky, war, and oaths.
Slavic Mythology: The Slavic mythological trinity includes Perun (god of thunder and lightning), Veles (god of earth, waters, and the underworld), and Svarog (the celestial god of fire and blacksmithing).