Verse 33

अनन्ताः पितरो यान्ति यान्त्यनन्ताश्च मातरः ।इह संसारिणां पुंसां वनपादपपर्णवत्

In plain words

Endless fathers depart, and endless mothers depart likewise, for men caught here in saṃsāra -- like the leaves of a forest tree.