There is always another way. If the path is blocked or a barrier rises up, there is always another way. I’m not completely sure that is always true but it is the premise that I begin with when faced with an obstacle. If i encounter resistance, it is an opportunity to reflect, reset, and restart or resist, regroup, and reconfirm or retreat, reform and reengage. Or any number of other re’s . What the barrier identifies is a possibility that hasn’t been considered and shouldn’t be taken as a criticism or a personal affront. The barrier may simply be surmounted, circumvented or crashed or there may be a reason to think about the approach and discover that there is a different and better way to get to your destination. Don’t be deterred unless reflection tells you that the new information offers an insight that you hadn’t considered. Then there may be a reason to reimagine the destination in a new light. Tilting at windmills is something I have done and only rarely has it been satisfying and even more rarely has it been successful. But if new information serves to inform the map and suggest a detour then that is valuable to achieving your goals.
I try not to anticipate a block in my path and try not to be watching for it but when I encounter one , I want to be able to examine what put it there, does it serve a purpose, is it an accident or an anomaly or should I be concerned about danger or other ramifications? I suspect that most of us get a feeling of disappointment when confronted with a setback but if we can get past that to the learning there is another way, there always is.