Is sweeping the ground while walking necessary while carrying things?
Yes. In Jain practice, especially for renouncers, sweeping the path before you move is important to avoid harming any small life-forms as you walk. When carrying things or moving, you are expected to watch the ground in front and use a broom or whisk to sweep aside insects or creatures that might be crushed. This is part of the principle irya-samiti (care in movement).
- Digambar tradition: the broom is typically a picchi made from peacock feathers.
- Śvetāmbara tradition: the broom is often called rajoharaṇa or ogha, usually made of cotton strands attached to a handle.
In addition, monks often sweep before sitting or lying down as well, to ensure they do not injure any living beings when they transition positions.
Sources for this understanding describe the general practice of sweeping for non-violence and the differing implements in Digambar and Śvetāmbara traditions. ( britannica.com)