When we come to the spiritual path, it needs a greater sacrifice than anything else. It asks one for one's time, for one's thought; when you are concentrating even it does not allow you to think of anything else. You must think on the object you concentrate on. The further you go, the greater sacrifice is wanted. And the difference between those who go quicker in this path or who go slower is in the capability of sacrifice. Sacrifice teaches renunciation. And there is no other way of self-effacement than sacrifice. The one who knows the path of friendship, the one who knows what real friendship means, he need not be told what sacrifice means; he knows it. For friendship does not mean a good time, a pastime. Friendship means sacrifice. And when once by friendship sacrifice is learned, then one begins to know what sacrifice is necessary on the path of spiritual attainment.