The wind clause is a belief that enjoying ones life is more important than anything else. For many years people have enjoyed naturally powered sports, and as such have waited for the right conditions of nature to enjoy their sport. Wind sports belong in that category. Waiting for the right conditions of wind means that participants are subject to the whims and desires of nature to provide them the wind to enjoy their sport.
When the wind blows and it will, participants will shed their daily routines and enjoy the power of the wind. That's the wind clause.
The next time some one references the "Wind Clause" you can take them to this definition.