Verse 38

परमाणोस्तवैवान्तरिदं संसारमण्डलम् ।वटत्वं वटधानायां बभूवास्ति भविष्यति

In plain words

Within you alone, the subtlest atom, lies this whole orb of saṃsāra -- as the banyan's being has been, is, and will be within the banyan seed.