Basically, if you can finish a ticket with two separate paths, it is open for the Mandala bonus.
For example (using US cities), if you have the route for Chicago to New York complete, you get the points on the ticket. Now, if you can go back from New York to Chicago without using any of the previous routes you just traced to get there, than you would have one ticket complete for the Mandala bonus. The more tickets you do with two complete and different routes, the more bonus points you get.
Thanks. Then, what if I have the 3rd complete & independence path?
or the bonus will only happen once per ticket?