Sudden rain, fate is knocking at the door. This sentence comes from the song "Chiling", which expresses the feelings that love is not allowed and hard to give up, rather than describing love.
Love is a complex and beautiful emotion, which needs the joint efforts and management of both sides. In love, people may experience all kinds of challenges and difficulties, but as long as the two sides firmly support and understand each other, they can overcome all difficulties and realize a beautiful love.