Lilac, also known as "baijie", is in the shape of a cross. It seems to be a knot, which holds people's sorrows and cannot get rid of it. It is used as a metaphor for "heart knot" and "sorrow knot", which will entrap melancholy in a thousand-thousand-thousand complex.
IU lilac pronunciation iu – Lilac Lyrics KLyrics
Ooh ooh Love is comparable to misty welcome 뜬구름처럼 Ooh