I've discovered that vanity has nothing to do with admiring my reflection, posing for photos, or adorning my body with lovely things.
For me, vanity is believing that other people should be more like me, as if there's something wrong with the way they are.
When this energy arises in me (and it comes up often), I focus my mind on the sensations that are occurring in my body temple,,,because only here can I observe how I am immediately punished by permitting vain thought patterns to propagate in my mind.
Once I experience the effects of vanity, it dissipates, and I can allow people to have whatever experience they choose, without my interference.
What a blessing it is to know that everyone is exactly as they should be and that everything is transpiring in perfect order. This is true freedom.