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What I found in the sensory-deprivation chamber

Personal ServiceJohns Hopkins UniversityBoxing

On the second day of the year, I stood naked above the tank of water saturated with Epsom salts, preparing to close myself into total darkness.

In less than an hour, I would find myself in a drug-free altered state, feeling my body melt into the warmth and interviewing a vision of a woman playing the piano.

I was in the home of artists and musicians Twig Harper and Carly Ptak, a West Baltimore rowhouse with shelves stacked high with books about the occult and psychology and a 9-foot-tall statue of a Yeti-like creature.

Harper had purchased and constructed the sensory deprivation tank, called a Samadhi Tank after the Hindu word for a higher state of awareness, in the spring. Since then, he has started a therapeutic spa of sorts called Be Free Floating, renting out 60- or 90-minute "floats."

With his curly hair and bright blue eyes, Harper could pass for the low-key kid brother of Gene Wilder's Willy Wonka. The couple's cats, Binkie and Pipsqueak, drowsed in armchairs while he propped his legs on a wood stove and explained that he decided to experiment with sensory deprivation because he's long had "a passion for altered states of consciousness."

"The tank is the safest and most reliable way to go into an altered state," he said.

John C. Lilly, a neuroscientist and psychiatrist whose interests included dolphin-human communication and psychedelic drugs, invented the isolation, or sensory deprivation, tank in 1954 as a channel for people to reach a deeper state of consciousness.

The phenomenon has grown more popular in recent years. Locally, flotation spas have popped up in Bethesda and Manassas, Va.

The tanks are lightproof, and heaters keep the water and air at skin temperature, around 95 degrees. The high concentration of Epsom salts makes floating effortless, so that the water cradles your body, relaxing your spine and limbs. There are few sounds — I could hear not only my breath but also my pulse.

Floating in the tank induces a deep state of relaxation, soothes aches and tension, and eases sleep problems, according to Lilly's writings and the tank's manufacturer.

But the most fascinating aspect of using the tank is experiencing how the brain amuses itself when there is little or nothing to see, hear and feel.

"If you don't have sensory input, you start hallucinating," said Johns Hopkins University neuroscience professor Hey-Kyoung Lee. When neurons don't receive information from the senses, the brain focuses more attention on the impulses shared between neurons, giving rise to hallucinations.

Proponents of sensory deprivation say that in the tank, the mind slips into the dreamy state one experiences when falling asleep or waking up.

This lucid dreaming can be used to meditate, explore thoughts and feelings, or solve problems. One computer programmer sprang out of Be Free Floating with the solution to a puzzle that had long troubled him, Harper said.

I bought a package of three floats for $100. For the first one, Harper said, your primary goal should be growing accustomed to the tank and the experience of being in warm darkness.

He assuaged any fears I had about the cleanliness of the tank. The high concentration of Epsom salts kills microbes, and the water is further purified with ozone between floats. Clients are instructed to shower before using the tank.

I did the first float shortly before Christmas, sandwiched between interviews on a busy reporting day. The tank room is a soothing place, warmed by heated panels and illuminated by colored lighting that can be adjusted with a remote control.

The tank looks vaguely like something out of "Doctor Who." The hatch is lightweight and lifted easily, revealing a shallow pool encased in black walls. I crawled in.

I was instantly struck by an intense sense of buoyancy. It took force to touch the bottom with my hand or foot, although it was easy to move my whole body to sit up.

If you've ever soaked an infected finger in a cup of hot water with Epsom salts, you know that it can sting. So, with my parched winter skin, I felt a bit like a giant sore thumb, but the sensation soon faded.

The tank was about 4 feet high, and long and wide enough that I could move around without bumping into a wall. I played around for a while then closed the door, sealing myself in total blackness.

To be in the complete absence of light feels quite different than being in a darkened room. In time, the darkness grew velvety. Purple shapes flitted through my field of vision — an illusion created when the brain seeks to make sense of the random firings of the optic nerve.

Soon I became aware of a sensation of movement, as if my body were gliding to the right. The tank no longer seemed confining, but limitless, and I felt as if a large fish were towing me through a placid sea. Shortly after that, the pump went on, signaling my float was over.

On my second float, the tank felt familiar and comforting, and I shut the hatch after just a few minutes.

As I grew accustomed to the tank, I again experienced the sensation that I was being pulled through the water. I saw the rapidly fizzling phantasms of purple light. I realized that I was tensing my body for no reason. I laid my arms at my side and willed the tension in my back and neck to release. I ruminated on the year that had just finished and the one ahead.

Soon I had a sense of melting, as if I were dissolving. My body seemed like a bag of warm water suspended in a pool of warm water, my skin a membrane separating one form of matter from another. I felt as if my consciousness had winged up from my body and was hovering just above.

Then a woman playing a red piano turned to me and said that the tank induced a rush of creative energy.

"Yes, yes," I murmured, "creative energy." I wondered why I hadn't interviewed the woman sooner and made a mental note to include her comments in my article.

Then I snapped back to reality. Had I been dreaming? Or did I have a hallucination?

Realizing I had interviewed a figment of my imagination made me giddy. It took me a while to sink back into the stillness, but soon an idea for a children's book occurred to me and I started sketching out the plot.

When the pump went off this time, signaling the end of my session, I felt as though only minutes had passed.

I quickly showered and rushed to tell Harper about my experiences. I felt a bit like one of the Pevensie children from "The Chronicles of Narnia," recounting travels through the wardrobe to the old professor.

Harper chuckled when I told him about my interview with the piano player. "That's great," he said. Having one such experience in the tank meant that I would likely have more, he said.

I tugged on my coat and hat, aware now of the paleness of my hands, the curve of my fingers, the animal scent of the wool clothing. Everything seemed new to me — the streetlights, the faces of people leaning into the snow. My thoughts echoed through my brain with new clarity, as if a television droning on in another room had been turned off.

Was I transformed? Did I, as the piano player suggested, receive a shot of creative energy? As much as I'd like to say that writing has been easier for me since then, the words trudged onto the page as painfully as they usually do.

But a certain stillness has stayed with me, a stripped-down feeling that seems appropriate for this most barren time of year. I have shed my fears of the tank, of the darkness and the solitude, and I'm eager to plunge back in.

julie.scharper@baltsun.com

twitter.com/juliemore

If you float

To schedule an appointment at Be Free Floating, visit befreefloating.com or call 443-418-3105. Floats cost $50 for an hour or $70 for 90 minutes. An introductory package of three one-hour floats is $100. The tank is available by appointment from 9 a.m. to 10 p.m. daily at 2118 W. Pratt St.

Copyright © 2014, The Baltimore Sun
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