When you encounter a wall, you should tell yourself, "Since there is a wall here, a wide, open expanse must lie on the other side."

Buddhism Day by Day

Wisdom for Modern Life by Daisaku Ikeda
Sunday, May 5, 2013:

 

When you encounter a wall, you should tell yourself, "Since there is a wall here, a wide, open expanse must lie on the other side." Rather than becoming discouraged, know that encountering a wall is proof of the progress that you have made so far.