f(x)’s hit 2015 K-pop song “4 Walls” symbolize the all-consuming, maze-like, and reflective nature of love. The lyrics describe a relationship as a confined space where the lover becomes the center of one’s reality, creating an intoxicating but inescapable “fantasy”.

Song Credits

  • Artist: f(x)
  • Album: 4 Walls
  • Released: October 26, 2015
  • Length: 3:28
  • Label: SM Entertainment
  • Lyrics: Lee Seu-ran
  • Composers: LDN Noise (Greg Bonnick, Hayden Chapman), Tay Jasper, Adrian McKinnon

f(x) “4 Walls” Official MV

f(x) “4 Walls” Lyrics

Hangul

감정이란 꽃은
짧은 순간 피어나는 걸
티끌 하나 없이
완벽했던 시작을 넘어
낯선 파란 빛이 파고들어
어지럽힌 건 mysteric (mysteric oh oh oh)

눈 깜짝할 그 순간
깊숙한 곳까지
번져버린 너란 blue
소리 없이 다가와
내게만 펼쳐낸 신기루

Love is 4 walls
너로 채운 mirror mirror
Love is 4 walls
신비로운 미로 미로

눈앞에 피어난 문을 열어
조심스레 빛을 향해 발을 디뎌
And I had the answers
But now they mean nothing
These walls caught me here with something
새 문을 열고 또 열수록
점점 더 커지는 너만이 가득한 4 walls
또 다른 색깔의 new walls
깊이 빠져드는 new world

반짝 빛이 나 난 잠시라도
눈을 뗄 수 없어 (없어) 넌 아름다워
투명하게 날 그려내던
거울 속엔 내가 아닌 네가 비춰와

눈 마주친 그 순간
내게 미소 지어
내 심장은 이미 blue
숨을 내쉴 때마다
새롭게 보이는 신기루

Love is 4 walls
너로 채운 mirror mirror
Love is 4 walls
신비로운 미로 미로

You’ve got to show, show me
You’ve got to show, show me
더 내게 보여줘

커다란 네 품 속 놀라운 fantasy
널 알아갈수록 헤어날 수 없는 걸
어디든 좋으니 이 세계 끝까지
데려가 줘

손을 뻗은 그 순간
파란 파도처럼
일렁이는 너란 blue (너란 blue)
점점 더 물들여와
선명히 빛나는 신기루
(신기루 신기루 신기루 신기루)

Love…

Love is 4 walls
너로 채운 mirror mirror
Love is 4 walls
신비로운 미로 미로 (I’m in the new world)

아름다워 ooh
(You’ve got to show, show me)
아름다워 ooh
(You’ve got to show, show me)

신비로운 미로

Romanized

Gamjeongiran kkocheun
Jjalbeun sungan pieonaneun geol
Tikkeul hana eopsi
Wanbyeokhaetdeon sijageul neomeo
Natseon paran bichi pagodeureo
Eojireophin geon mysteric (mysteric oh oh oh)

Nun kkamjjakhal geu sungan
Gipsukhan gotkkaji
Beonjyeobeorin neoran blue
Sori eopsi dagawa
Naegeman pyeolchyeonaen singiru

Love is 4 walls
Neoro chaeun mirror mirror
Love is 4 walls
Sinbiroun miro miro

Nunape pieonan muneul yeoreo
Josimseure bicheul hyanghae bareul didyeo
And I had the answers
But now they mean nothing
Cuz these walls caught me here with something
Sae muneul yeolgo tto yeolsurok
Jeomjeom deo keojineun neomani gadeukhan 4 walls
Tto dareun saekkkarui new walls
Gipi ppajyeodeuneun new world

Banjjak bichi na nan jamsirado
Nuneul ttel su eopseo (eopseo) neon areumdawo
Tumyeonghage nal geuryeonaedeon
Geoul sogen naega anin nega bichwowa

Nun majuchin geu sungan
Naege miso jieo
Nae simjangeun imi blue
Sumeul naeswil ttaemada
Saeropge boineun singiru

Love is 4 walls
Neoro chaeun mirror mirror
Love is 4 walls
Sinbiroun miro miro

You’ve got to show, show me
You’ve got to show, show me
Deo naege boyeojwo

Keodaran ne pum sok nollaun fantasy
Neol aragalsurok heeonal su eomneun geol
Eodideun joheuni i segye kkeutkkaji
Deryeoga jwo

Soneul ppeodeun geu sungan
Paran padocheoreom
Illeongineun neoran blue (neoran blue)
Jeomjeom deo muldeuryeowa
Seonmyeonghi binnaneun singiru
(Singiru singiru singiru singiru)

Love…

Love is 4 walls
Neoro chaeun mirror mirror
Love is 4 walls
Sinbiroun miro miro (I’m in the new world)

Areumdawo ooh
(You’ve got to show, show me)
Areumdawo ooh
(You’ve got to show, show me)

Sinbiroun miro

Translation

The flower that is emotion blooms
In a short moment
Without any of dust
It perfectly overcomes its beginning
An unfamiliar blue light shines
The thing that makes me dizzy mysteric

That moment that surprises me
Until a deep secluded place
The blue that spreads that is you
You silently approach me
A mirage that is spread before only me

Love is 4 walls
The mirror mirror that’s filled up by you
Love is 4 walls
The mysterious maze, maze

Opening the door that grew before me
Carefully treading towards the light
And I had the answers
But now they mean nothing
Cuz these walls caught me here with something
Opening a new door
As I open them these 4 walls that grew more with you
These new walls that are different colours again
This new world I’m falling deeper into

A bright light is lit, I can’t
Take my eyes off for even a moment, you’re beautiful
Within the invisible mirror that drew me in
You who are not me shines

The moment I meet your eyes
Smiling at me
My heart’s already blue
Whenever I take a breath
The mirage that I see differently

Love is 4 walls
The mirror mirror that’s filled up by you
Love is 4 walls
The mysterious maze, maze

You’ve got to show, show me
You’ve got to show, show me
Show me more

Within my large embrace, the surprising fantasy
The more I get to know you, I can’t escape
Since wherever is good, till the end of the world
Bring me with you

The moment you spread out your hand
Like a blue wave
The blue that is you sways
Slowly becoming more charmed
The mirage that shines clearly
(Mirage mirage mirage mirage)

Love…

Love is 4 walls
The mirror mirror that’s filled up by you
Love is 4 walls
The mysterious maze, maze

It’s beautiful ooh
(You’ve got to show, show me)
It’s beautiful ooh
(You’ve got to show, show me)

The mysterious maze

f(x) “4 Walls” Meaning

“4 Walls” by f(x) uses the image of four walls to symbolize an intense and immersive experience of love. The lyrics portray romance as a space that feels both comforting and confining, where the other person becomes the center of the narrator’s world.

A key theme of the song is emotional captivity. The “4 walls” act like a maze or enclosed room, representing how love can completely surround someone’s thoughts and emotions. While this creates a sense of security and excitement, it also makes it difficult to escape or see beyond the relationship.

The lyrics also explore the blurred line between reality and fantasy. Through mirror imagery and dreamlike descriptions, the narrator feels as though they are living in a world shaped entirely by their feelings, where everything reflects the person they love.

Overall, “4 Walls” captures the intoxicating and surreal nature of love. Combined with the music video’s themes of parallel realities and the butterfly effect, the song presents romance as a beautiful yet complex force that can reshape one’s perception of reality.