“If... thine eye be single, thy whole body shall be full of light” (Matt. 6:22).
The object is wrong if you have not light for the step. There may be difficulties in going up a steep hill, but if the object before you is clear, you get over them as quickly as you can. This is what is meant by the expression, “This one thing I do” (Phil. 3:13). It is having one object, the mind intent on accomplishing it. If it is so with you, there will be sure light in the path—light not for ten years hence, but for this one step that is before you, and then for the next.
J. N. Darby