Clearing out all your misery gets you out of the way. You cease being an obstacle, not only to yourself but to anyone else. Only then are you free to serve and enjoy other people.
When something poses as obstacle to you, surmount it and use it as a miracle to move on to greater height.
When a man, however passively, becomes an obstacle to the fulfillment of a woman's desires, he becomes an odious thing in her eyes, - or will, given time enough.
Venture to a remote corner of a faraway land and, from the moment you get there, every person and every thing becomes an obstacle, designed to entrap you, to stop you proceeding on your way.
My life is one long obstacle course with me as the chief obstacle.
The great obstacle to discovering the shape of the earth, the continents and the ocean was not ignorance but the illusion of knowledge
As water seeks the easiest path to the sea, so armies should avoid obstacles and seek avenues of least resistance.