"Be the change you want to see in the world" --- Mahatma Gandhi
How, here is something heartfelt. I am sure anyone who is on any path of self improvement and/ or spiritual development has come across this at least once.
You live your yoga, read all the great books, go to seminars, workshops, satsangs, meditate, work on yourself, control your mind and reactions, trying to cultivate positive thinking- whatever it is that you do. But... you're only human. You slip, you make mistakes, you go back to your old ways - even if it's for a split second. You're not an enlightened being- you just want to become one. Simply being a better person is already a great intention!
It all goes well until you slip. Have you noticed how those around you are quick to turn around and point out your fall?
"You read all those books and still do things like that?",
"Yoga is not really helping, huh?",
"That's a strange thing to say for a yogi!"
"I wouldn't expect that from a yoga teacher!"
You know what's interesting? Those comments come from people who are not on ANY path themselves. Because the ones that are on the path know how hard it is to stay on and to keep going. Plus they are busy working on themselves, because they know that you cannot expect anyone to change in order to please you- you need to change yourself. Certain people are not on any path for various reasons. Sometimes it means that they not ready - the time just hasn't come yet. Sometimes it means that they just prefer to watch other people improve and change (and notice their falls in the process), since they believe that the World owes to them to be in a certain way, the way they expect. The latter also means that they are just not ready. No one can be blamed for that.
So, it all comes back to us - those who are on any path of self discovery. It's our responsibility to be vigilant. Even the greatest spiritual seekers where provoked and tempted (Jesus was tempted by demons in the desert, Buddha was tested by Mara). It is just a part of the process. The higher you climb the harder it may get. You will be provoked and poked again and again, until the day when none of this will have any power to affect you anymore. Until then simply take every poke as a lesson, as an opportunity to burn one more veil, and as an opportunity to grow.