What can you infer from the story of Tita's birth?

Apparently Tita was so sensitive to onions that she cried from within the womb whenever anybody chopped onions. Indeed, one day Tita’s crying became so violent that she induced her own premature birth and caused her mother to go into labor atop the kitchen table. When Tita emerged a flood of her own tears came out along with her and covered the entire kitchen floor. After the tears dried Nacha, the family cook, swept up the salt that remained and used it for years to prepare the family’s dishes. The circumstances of Tita’s birth gave her an everlasting love for the kitchen.