There is the need for a prop of something if the mind
should acquire concentration and should intensify it. In
all the theories and directions in the Jain dharma relating
to meditation, there is a very interesting and beautiful
description of the Navpad.
one can attain the highway of mental firmness and concentration
if one meditates on the Navpad in the various prescribed
ways realizing their qualities, which are among the best
and the most sublime in the world.