Allow the consciousness to develop and widen

Most, even in doing Yoga, live in the mind, vital, physical, lit up occasionally or to some extent by the higher mind and by the illumined mind; but to prepare for the supramental change it is necessary (as soon as, personally, the time has come) to open up to the Intuition and the Overmind, so that these may make the whole being and the whole nature ready for the supramental change. Allow the consciousness quietly to develop and widen, and the knowledge of these things will progressively come.

Ref: Letters of Yoga Vol. III