why Peepal tree has been given the prime importance among all these trees and worshipped even today

. The reason is right from the root to its leaves; the tree contains the medicinal values and cures many diseases like biliousness & heart diseases, relieves constipation, Jaundice, leprosy, gum diseases etc.,. That was the reason our ancient sages recognized the importance of this tree and declared- Peepal tree is the abode of Gods and Goddesses.

The veracity of the fact has been traced during excavation of an ancient civilization by the name Mohenjo-Daro and Harappa. It has been ascertained that the civilization existed around 1300- 1700 B.C. The findings establish that the inhabitants of that civilization. Almost all experts call the civilization "proto-Dravidian" and many are of the opinion that they are the ancestors of Tamils worshiped the tree known as Peepal in English or Arasa Maram in Tamil. 

They belief that Women circumambulate the peepal tree to be blessed with children or to gain a desired thing or person. Scientifically, Its juice has an enzyme that stimulates child bearing capacity. So people go around the tree for want of a child, by aspiration of the air emanated by the tree. The most important value of this wonderful tree is that, a person dying with snake bite can be cured and can get life.

Scientific research suggests that the Peepal tree is best antidote [counteracts or relieves a harmful or unwanted condition; remedy ] to all kinds of pollution, specifically, water pollution, air pollution and noise pollution. Also this is the only tree that emits oxygen even in night whereas other trees emit oxygen only at day time by photosynthesis.

Most plants largely uptake Carbon dioxide (CO₂) and release oxygen during the day (photosynthesis) and uptake oxygen and release (CO₂) during the night (respiration). Some plants such as Peepal tree can uptake (CO₂) during the night as well because of their ability to perform a type of photosynthesis called Crassulacean Acid Metabolism (CAM). However, it is not true that they release large amounts of oxygen during the night. Trees will continue to photosynthesize as long as there is light. there is always some light at night, like moonlight etc, but its intensity is less hence provides less energy for photosynthesis.

As peepal tree is huge it gives lots of oxygen during day & lots of carbon di oxide during the night. So people feel giddiness or breathlessness at night when they stand under this tree. People think that there is a ghost or evil sprit under the vast trees like Banyan & Peepal.

-Tamilan Comes