Often, many practitioners of japa meditation, prefer to support their forearm on the Yoga Danda, so that they can practice japa without discomfort.
Japa Meditation on mala beads rest the hands on the knees while turning the beads, so that the mala is allowed to rest on the floor
The Yoga Danda is also used for balancing breath between nostrils. Yoga danda is placed below your armpit which contributes to balance air flow in your nostrils, thus balancing ida and pingala nadis, thus activating sushumna and achieving success in meditation and pranayama