A 2007 study showed that Forest bathing can reduce cortisol, a stress hormone. It has a positive impact on adiponectin, a protein that helps regulate blood pressure levels. The forest has higher oxygen levels than the urban environment thus inhaling oxygen rich air can support proper oxygenation of your blood and subsequently benefit your brain function. The forest is also full of phytoncides which are antimicrobial compounds released by trees and plants, the intake of these compounds into the body can benefit the immune system.
Shinrin yoku also helps in absorbing positive energies in the calming environment of nature.
The serene environment of the forest can enhance mood, reduce feelings of anxiety, depression. The abundance of color green provides a sense of tranquility, calmness, mental clarity and sense.

G.I. Gurdjieff, Greco-Armenian mystic and philosopher emphasised on the importance of gathering different kinds of impressions for inner development and self awareness. Observing and absorbing the diverse impressions in the forest one can enhance their inner life and pursue a deeper connection to the world and oneself. The scents of soil, trees and air stimulate the sense of smell , which often gets dulled in urban environments. Feeling the texture of tree bark, leaves and the ground underneath invoke a sense of grounding in the present moment.