1)
너란 세상 means "the world called you"
"너란 세상에선 모두 아름다워"
In the world called you, everything is beautiful
2)
이끌림 is composed of
이끌리(다) + ㅁ
이끌리다 is passive verb of 이끌다
ㅁ is a siffux which make a verb into a noun.
이끌리다 means "be led, be guided, be drawn"
이끌림 means "being drawn,attraction"
"이끌림에 난 또 다가가" is not a natural sentence.
"I come up to you again due to the attraction"