"A traveler who has read all the wind and snow is not a free man" is a symbolic verse, which emphasizes the sad state of oppressed freedom.
Fengxueke represents those people who are oppressed by society. They struggle to move forward in a desolate environment and experience countless winds and snows, but they still cannot get rid of their predicament and can only live in misery. In this state, there is no way to avoid the tragic fate.
This verse is a metaphor that oppressed people cannot live freely, but can only be in a state of repression. Although they fight bravely, there is no result in the end. In the end, they can only let themselves be Destiny dictates, there is no freedom. This statement can only really work if we can truly understand the pain of oppressed people and give them the right to live freely.