I work in computers. Being able to do much of my work anywhere has allowed my the flexibility to travel all over the world. Iceland, Turkey, Morocco, Russia, Fiji, Australia and New Zealand among others. Haven't found my edge there ...
I am looking for someone spiritual. I had an opportunity to go to India, the Maha Kumbha Mela, and picked up my spiritual path. For the next 5 years I studied Daoism, Hinduism and Tibetan Buddhism and practiced. I found my answers, but I have a ways to go before I grok them.
I went to Law School thinking I could make a bigger difference there than in computers. Three years of school and 4 years of litigating consumer cases and going against attorneys that figure every case is some sort of scorched earth litigation is not my idea of fun, but it was eye opening. I did find that edge ... not walking away, but a bit jaded.
Another edge I found was adrenalin ... tried a lot and found, at least for the moment, an edge at skydiving. That is a rush and if I ever think I totally have it figured out and am in control ... skydiving can be a reset ... I don't skydive a lot.
Parenthood and marriage were some other edges I had to explore. Learned a lot about relationship. And kids ... well I fell off that cliff :-). Love them to death and wouldn't take it back, but that was like finding my edge and then getting dragged way further than I wanted too :-)
If you think you have life figured our and want to take the next step, and are fearless (or stupid) enough to try it. Parenthood!