Leaves of Morya's Garden - Book 2 - Illumination (1925) - 2.8.16: If the condition of spirit permits, it is far better to use the last flash of the nerves' emanation for flight. Thus the lower strata will be more sparse. It is important to dissolve the atmosphere of the lower strata so that it will not press upon the Earth. Cooperation from above and below will give the speediest results.