जालार्करश्म्यवगत: खमेवानुपतन्नगात् ॥ ५ ॥
trasareṇus trayaḥ smṛtaḥ
kham evānupatann agāt
The division of gross time is calculated as follows: two atoms make one double atom, and three double atoms make one hexatom. This hexatom is visible in the sunshine which enters through the holes of a window screen. One can clearly see that the hexatom goes up towards 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.