1.123 tasaṃti pāṇā padisodisāsu ya.
The mobile beings, being frightened, wander in all directions, cardinal and intermediate, overwhelmed by distress.
Bhāṣsyaṃ Sūtra 123
The beings that have the consciousness of movement to and fro are mobile beings. Moreover, they are in distress being afraid, worked, shrivelled and frightened. They flee from one place to another. Hence they are called mobile.[1]
The purport of the sūtra is that the mobile beings flee in all directions, cardinal and intermediate, out of fear. In the Cūrṇi the example of silk-worm is given. The silk-worm makes sheath out of fear to protect itself.