Yin Yoga is for people who need to slow down - properly slow down. If you're always rushing, always doing, always pushing through, this practice teaches you something radical: the power of staying still and letting your body soften.
This isn't about achievement or getting into impressive poses. It's about finding a middle way where you can feel stretching happening without going to your absolute limit, then staying there long enough for real change to occur.
If you're used to "pushing through" or find stillness uncomfortable, Yin will challenge you in unexpected ways. That's the point.