Srimad Bhagavatam — Tritiya Skandha, Shloka 5
Kāla-vibhāga: The Divisions of Time from Atom to Brahmā, and the Lord Beyond Time
अणुर्द्वौ परमाणु स्यात्त्रसरेणुस्त्रय: स्मृत: । जालार्करश्म्यवगत: खमेवानुपतन्नगात् ॥ ५ ॥
aṇur dvau paramāṇū syāt trasareṇus trayaḥ smṛtaḥ jālārka-raśmy-avagataḥ kham evānupatann agāt
Two aṇus make one paramāṇu, and three paramāṇus are known as a trasareṇu. This trasareṇu is seen in sunbeams entering through the holes of a window lattice, appearing to rise upward into the sky.
The atom is described as an invisible particle, but when six such atoms combine together, they are called a trasareṇu, and this is visible in the sunshine pouring through the holes of a window screen.
FAQs
In 3.11.5, Śukadeva describes subtle material measurement, stating that two aṇus make a paramāṇu, and he illustrates the tiniest visible particle as the speck seen moving within a sunbeam through a lattice.
Śukadeva uses a familiar visual example—tiny particles seen in sunlight—to help Parīkṣit grasp extremely subtle units of matter that form the basis for later calculations of time and cosmic measurement.
It trains the mind to observe how vast realities are built from minute components, encouraging humility and contemplation of the Lord’s precise order governing both the smallest and the greatest.