There are so many things in our lives that can be idols: money, people, jobs, possessions, houses, status, trips, indulgences. There's not necessarily anything wrong with them, but if we put them above God in our hearts, then they're an idol. It's good to take the time to intentionally look at things in our lives that could come before God. Having a cleansing time is good and healthy and can help realign our hearts. :)