For many of us, the enemy is just-old-fashioned complacency. We get into our routines. We distract ourselves. The couch is comfortable. The Doritos are cheesy. And nothing new happens.
What most people don't understand is that passion is the result of action, not the cause of it.
Discovering what you're passionate about in life and what matters to you is a full-contact sport, a trial-and-error process. None of us know exactly how we feel about an activity until we actually do the activity.
So ask yourself, if someone put a gun to your head and forced you to leave your house every day for everything except for sleep, how would you choose to occupy yourself? And no, you can't just go sit in a coffee shop and browse Facebook. Let's pretend there are no useless websites, no video games, no TV. You have to go outside of the house all day every day until it's time to go to bed -- where would you go and what would you do?
Sign up for a dance class? Join a book club? Go get another degree? invent a new form of irrigation system that can save the thousands of children's lives in rural Africa? Learn to hang glide?
What would you do with all that time?
If it strikes your fancy, write down a few answers and then, you know, go out an actually do them. Bonus points if it involves embarrassing yourself.