The number of hours spent in meditation is no proof of spiritual progress. It is a proof of your progress when you no longer have to make an effort to meditate. Then you have rather to make an effort to stop meditating: it becomes difficult to stop meditation, difficult to stop thinking of the Divine, difficult to come down to the ordinary consciousness.
Then you are sure of progress, then you have made real progress when concentration in the Divine is the necessity of your life, when you cannot do without it, when it continues naturally from morning to night whatever you may be engaged in doing. Whether you sit down to meditation or go about and do things and work, what is required of you is consciousness; that is the one need -to be constantly conscious of the Divine.
  But is not sitting down to meditation an indispensable discipline, and does it not give a more intense and concentrated union with the Divine?
That may be. But a discipline in itself is not what we are seeking. What we are seeking is to be concentrated on the Divine in all that we do, at all times, in all our acts and in every movement. There are some here who have been told to meditate; but also there are others who have not been asked to do any meditation at all. But it must not be thought that they are not progressing. They too follow a discipline, but it is of another nature. To work, to act with devotion and an inner consecration is also a spiritual discipline. The final aim is to be in constant union with the Divine, not only in meditation but in all circumstances and in all the active life.