When my son arrived, I fainted, and now the Dr.s had TWO patients. Blood and me don't mix well. My son was my obstacle (or so I thought). He would do the OPPOSITE of what you asked him to do, until you gave up. Only over time, did he teach me (without telling me) that "I" was the obstacle. The way I wanted to control the world outside of me before controlling the world inside of me. What obstacle has taught you something important?