Sythaeryn was born to a large if humble family of eladrin who had migrated to the prime material plane some centuries before. His home was large, but humble and his siblings many. So despite the size of his home, he was rarely able to find the space and quiet he craved. Naturally, he gravitated to the wilderness surrounding their settlement and as time grew on, he began to wander further and further afield.
One day, war came to their settlement. Orcs, having overhunted their hunting grounds began to prey upon other settlements in the region. Sythaeryn had been out scouting when it happened. He'd even stumbled upon the tracks of the war party which led to his home. In a panic, he ran to try to warn his family, but they were already gone. The house had been burned, and his family either slain, or scattered by the attack. Realizing that he was no longer safe here, Sythaeryn fled.
On his many wanderings, Sythaeryn had happebed upon a grove of trees in the woods. At this place, he'd discovered a presence which soothed him and at rare times of stress and emotion, he went to this grove to seek solace. On this occasion however, he found other people. Humans and elves mostly, who were tending to the grove as if it were a garden.
These people were hostile at first, accusing him of intruding on their sacred grove. He convinced them however that he was, like they, drawn to the serenity of the place and now had nowhere else to go. And thus, Sythaeryn became a druid.