Literature Reference: 稍嫌单衣重，初怜北户开。—— 《初夏曲三首 一》 刘禹锡 Slightly feeling the heaviness of thin clothes, I begin to cherish the north window being open. Source from 'Three Songs of Early Summer, Part 1' by Liu Yuxi.
北: Direction, in the morning facing the sun, the side to the left hand, opposite to "south".
开: Inception and commencement. It signifies the embarkation and the beginning, subtly hinting that all the beauty is destined to arrive.
Meaning: The north window being open symbolizes openness, acceptance, and a new beginning.