This is the 10842nd most frequent Korean word.
그리던
"그리던" means "that was longing for" or "that was drawing."
그리던 is used as a modifier for 풍경, indicating the scenery that 'I was imagining' or 'I imagined' previously.
그리던 풍경이 눈앞에 펼쳐졌다.
The scenery I was imagining unfolded before my eyes.
그리던 acts as a modifier for 날, describing the day that 'I had been yearning for' or 'longed for' in the past.
그리던 날이 드디어 왔다.
The day I had been waiting for has finally come.
그리던 modifies 모습, referring to the visual image that 'I used to picture' or had imagined before.