Bhagavad Gita 15.1

श्री भगवानुवाच · śrī bhagavānuvāca

ऊर्ध्वमूलमधःशाखमश्वत्थं प्राहुरव्ययम्।छन्दांसि यस्य पर्णानि यस्तं वेद स वेदवित्॥

ūrdhvamūlamadhaḥśākhamaśvatthaṃ prāhuravyayam |chandāṃsi yasya parṇāni yastaṃ veda sa vedavit ||

The Blessed Lord said: They (the wise) speak of the indestructible peepul tree, with its roots above and branches below, whose leaves are the meters or hymns; he who knows it is a knower of the Vedas.

Lord Shri Krishna continued: This phenomenal creation, which is both ephemeral and eternal, is like a tree, with its seed above in the Highest and its ramifications below on this earth. The scriptures are its leaves, and he who understands this knows.

Our plain-language meaning of this verse is waiting for scholar review.