Sri Aurobindo
Letters of Sri Aurobindo
Volume II - Part 2
The growth out of the ordinary mind into the spiritual consciousness can be effected either by meditation, dedicated work 
or bhakti for the Divine. In our Yoga, which seeks not only a static peace or absorption but a dynamic spiritual action, work is indispensable. As for the Supramental Truth, that is a different matter; it depends only on the descent of the Divine and the action of the Supreme Force and is not bound by any method or rule.