I took this picture of an old bridge and it got me thinking about the phrase "burning bridges". Wikipedia says "Burning Bridges is an expression synonymous to the "Point of no return", typically used when a relationship becomes irreparable."
When that happens, we have to accept that our bridge in life is made up of many decisions. Every decision has consequences and few things in life are just "good or bad", "right or wrong". When we come to that realization it's then that we have a greater ability to "build a bridge".