Changes

One must learn to concentrate and do everything with full concentration. <ref>http://incarnateword.in/cwm/12/answers-to-a-monitor#p3</ref>

But the will is something altogether different. It is the capacity to concentrate on everything one does, do it as best one can and not stop doing it unless one receives a very precise intimation that it is finished. <ref>http://incarnateword.in/cwm/05/13-may-1953#p15 </ref>

Concentration does not mean meditation; on the contrary, concentration is a state one must be in continuously, whatever the outer activity. By concentration I mean that all the energy, all the will, all the aspiration must be turned only towards the Divine and His integral realisation in our consciousness. <ref>http://incarnateword.in/cwm/16/letters-to-a-young-sadhak-vi#p2 </ref>

No, I told you this the other day, the concentration we have now is the opposite of meditation. In the common meditation we used to have, I tried to unify the consciousness of all who were present and to lift it in an aspiration towards higher regions; it was a movement of ascent, of aspiration—whereas what we do here, in concentration, is a movement of descent. Instead of an aspiration which rises up, what is required is a receptivity which opens so that the Force may enter into you. There are many ways of doing this; each one according to his particular nature should find out the best method. What is asked here is a receptive offering, not of the body or the mind or the vital, of a piece of your being, but of your entire being. No other thing is asked of you, only to open yourself; the rest of the work I undertake. <ref>http://incarnateword.in/cwm/04/17-february-1951#p47 </ref>

There can always be a relation between everything, but usually one means by contemplation a kind of opening upwards. It is rather a state of passive opening upwards. It is a fairly passive form of aspiration. One makes this movement rather like something opening, opening in an aspiration; but if the contemplation is sufficiently total, it becomes a concentration. Yet it is not necessarily a concentration. <ref>http://incarnateword.in/cwm/07/24-august-1955#p18 </ref>