One early summer day, a bachelor farmer was taking a moment to rest from tending his fields. Basking in the sun and the feel of the summer breeze on his skin with the rich smell of earth and grasses. Opening his eyes, a beautiful woman stood before him. Pale, yet healthy-looking, she was dressed in flowing clothes that whispered to a breeze not felt. Admiring each other and succumbing to the moment, they lay down together for a time after which the woman disappeared.
Late the next summer, the farmer woke one morning to find the woman had come to visit him - along with a child. Naming the child for their meeting, she told him that she was no longer able to keep their son: her lord had found out about it and commanded her be rid of the polluted creature. Bidding him to raise their son in health, honor, and love, she hoped they could one day be together again. Turning before the farmer could ask her any more questions, she left the farmhouse and disappeared again.
The infant Summer, as he was referred to, came to grow up as the only son of the bachelor farmer who refused to say where the boy had come from, and refused to marry any of the village women. Though poor, the farmer did his best to provide for Summer: having him taught to read and write, and any other education he was able to procure for the boy. Told the true story of his origins, Summer spent as much of his free time when not learning or helping his father around the farm out in the fields and the plains beyond them - always hoping against hope that his mother would at last return.
The years passed, and still she didn't come, his father aged three years for every one of his as Summer grew up as the toll of working a farm largely unassisted mount with eash season. As Summer was coming into adulthood, his father fell ill. Taking care of the now-old man by himself, Summer begged his father to hold on and get better so that he could again be with her when she at last returned.
When his father died, Summer was distraught beyond measure. Burying his father in the place he'd first met Summer's mother, Summer sat by his side for days in grief, listening to the wind for which he'd been named. During this vigil, Summer began to feel like the wind was talking to him. Thinking this could at last be his mother, he strained to open himself up to hear her words.
Instead of his mother, he was hearing the air itself in its elemental form. Listening, and learning, Summer soon began to control the air in ways he'd never imagine. Taking this as a sign to instead seek his mother out instead of waiting for her to come to him, he sold the farm and made his way to the largest city he knew of.
Obtaining audience with the most famous wizard he could find, he told his story and offered the wizard everything he had if the wizard could help him. When the wizard agreed, Summer was overjoyed. Casting a spell attuned to Summer - and it was hoped to his mother as well - the wizard completed his spell and Summer vanished from the Material Plane completely.