Locke's Island Sweat Lodge in Further Instructions
Locke's Humboldt County Sweat Lodge in Further Instructions
A Sweat Lodge is an important aspect of many Native American religious groups. It is a place of ritual purification and mystical insight, involving prayers, songs, and what is essentially a sauna-like environment.
On the Island
The Sweat lodge was introduced in the episode Further Instructions. The lodge was built by John Locke in hopes to "speak to the island" after he became mute during the implosion of the hatch. He needed to find a new direction for his life since he mistakenly caused an incident when he decided to no longer push the button. It was in the sweat lodge that Locke had a dream involving Boone who told him to clean up his own mess and to save Eko's life.
The Sweat lodge is located on the beach at the site of Eko's abandoned church.
In Flashbacks
Also in Further Instructions, we were introduced to Mike's farm which also had a Sweat lodge built on it. Locke described it to Eddie as a place for anyone to go in, light a fire, get it nice and hot, and meditate. That person would then be able to figure out what direction to take with their life. They could also learn whether they were a hunter or a farmer.