"For he is our peace, who hath made both one, and hath broken down the middle wall of partition between us; Having abolished in His flesh the enmity, even the law of commandments contained in ordinances; for to make in Himself of twain one new man, so making peace; And that He might reconcile both unto God in one body by the cross, having slain the enmity thereby: And came and preached peace to you which were afar off, and to them that were nigh." (Ephesians 2:14-17) "Thou art not far from the Kingdom of God." (Mark 12:34
Hitting the wall
Runners do it. Really, any creative endeavor will hit stone and rock and bricks. Even below that, struggling to get out of bed each morning and live your quotidian life. It would seem "writer's block" isn't just reserved for those who try to express through words. I find the best way to overcome writer's block is to...keep writing. If you have to write about why you can't write, do it. But there are times though, that God must be the one to remove the wall before you progress. No way around it. From the earliest point in the life of Jesus in us, God removed the wall. It was a thousand feet high and as many deep and that's just its metaphor. In other words, impossible to surmount. This is why God is good. Because He started us off right. It didn't matter that it took the breaching of the very body of Jesus in order to let us in and through. The wall seems insurmountable, but God sees it gone.
"And when He had given thanks, He brake it, and said, Take, eat: this is my body, which is broken for you: this do in remembrance of me." (1 Corinthians 11:24)
Hitting the ground laughing
"For Thou wilt light my candle: the Lord my God will enlighten my darkness. For by Thee I have run through a troop; and by my God have I leaped over a wall." (Psalm 18:29)
And there are times that God would have you scale the wall. To see what it's like to surmount something that Jesus did already. This is hard work and suffering and perhaps seeing an outcome that's different than the one you had in mind. David, in the above verse, ran through the troop and over the wall. And it was enough. Because maybe God has called someone to go through what you did--after you? You'll be the one to pray for them and show them how it's done.
Another name for a fence or wall or partition that has been recessed into the ground is a "ha-ha". Its name refers to the sound of surprise when you come upon it, not knowing it was there. Look for God to show you the walls that you may not even have known you were surmounting purely by virtue of keeping your mind and heart and life focused on Him to where you didn't see the obstacle in the first place. God is distracting that way.
"And it shall come to pass, that when they make a long blast with the ram's horn, and when ye hear the sound of the trumpet, all the people shall shout with a great shout; and the wall of the city shall fall down flat, and the people shall ascend up every man straight before him." (Joshua 6:5)
Whether you're called to demolish or surmount or merely march around and around, whatever walls you may be facing, God will show you what to do with them.