Qi Gathering - 56th Meridian and working towards the 11th Rebirth that needs 150 impurities. :D
I spent the last 10 hours farming Core Disciples for spirit stones and got quite a lot of levels. I'm pretty much at 300 points into everything since that seems to be when diminishing returns on stat points really kicks in hard. (20pts in might only gave me 4.4 more damage.)