There are times when we need to cross over to the other side, but there’s a challenge or obstacle in our way. Finding a bridge is easier way to get to the other side (depending on the state of the bridge of course). Bridges save us time, energy and carry us safely over.
But when you just keep walking and there’s no bridge to be found, sometimes you need to build one instead of waiting for it to appear. Once you do, many after you might use it as well.
Don’t waste your time when building is not necessary; but also don’t waste time searching when the time is right to build.