I recently have learned a lot about my Northern Shaolin Sword form (Wuhudao) from playing with Maija. She's great. What amazed and delighted me the most is that every single move in this old opera form from Kuo Lien-Ying is totally functional. Even the things that I had thought were artistic flourish turned out to be really useful techniques!
And while we are at it I have a new favorite visualization. The most common visualizations of qi are clouds, steam, silk, water, fire...etc.... all that old school stuff. But my new favorite thing to visualize is dry-cleaning plastic! It puffs up, it floats down slowly, it spins around, it has a mind of it's own.