Hindu Samskars & legends on traditional worship of Trees with local practices has been researched a lot and recorded in recent times.
PANCHAVATI refers to a group of 5 trees grown in selected spot that gives a powerful aura.This has been tested and experinced by many reliable authorities .
They are: 'ShamI' (vanni, Acacia ferruginea), 'Ashvattha' (peepal, Ficus religiosa), 'Nimba' (margosa/neem, Azadirachta indica) and 'Audumbara' (country fig, Ficus racemosa).
These are known as the 'panchavati' trees.
In another version, the 'panchavati' trees refer to 'banyan, fig, gooseberry (amla/nelli), bilva and ashoka' trees.
The Peepal Tree ,Ashwattha in Gita and Banyan -Vata Vriksha of Shree Dakshinamurty
or Nyagrodha in Shree VS) are in our stotras.The Bilwa of Shree Mahalakshmi Devi, Shammi of Shiva & Shani & Oudamber of Dattatreya is in our Puranas
Indian villages used to have a large, round, raised platform built around the 'panchavati' trees where religious and other village meetings were held. These trees purified the air around and also had a powerful aura; people who sat under them breathed this and were calm and collected -have expressed this.
Pranic Healing also mentions breathing under Trees for rejuvenation.
I have tried this and sincerely recommend it.
Pranayama or simple deep breathing under Trees.
Maintain the system i.e.-Namaskar to the Vriksha, ask- seek permission and do the breathing exercise. Even sitting quietly in such spots helps immensly-
The 'panchavati' trees have been a source of inspiration for our sages.
WE can emulate this and encourage growing this in parks and our own residential colonies.
Vriskhsa Naam Pataye Naam