Meditation on a Flame: The Light and the After-Light
A practice from the yoga path of the inner light
There is an old and simple doorway into meditation: a candle, a quiet room and your own eyes. In this practice we work with two kinds of light. The first is the flame in front of you. The second is what I call the after-light: the living field of colour and form that appears behind your closed eyes once you have looked into the flame. The practice moves back and forth between these two, and in that movement something shifts in the way we perceive.
The practice
Preparation. Place a candle at eye level, about an arm’s length in front of you. Sit comfortably, in a posture you can hold for some minutes without moving much. Breathe in deeply, breathe out and let yourself arrive in the body.
1. Soft gaze on the flame. Rest your eyes on the flame. The gaze is steady but soft, not staring. While looking, scan the body for tension: legs, shoulders, jaw. Let them release. Then ask yourself a simple question: which colours do I see in the flame? Blue at the base, yellow, orange, perhaps white at the core. Notice also the colours directly around the flame.
2. Open the periphery. Keep your eyes on the flame, but widen your attention until you are also aware of the edges of your visual field. You see the room, the floor, the shape of your hands, while your eyes stay with the flame. This double mode, a central focus held within a wide awareness, is the heart of the practice.
3. Close the eyes and follow the after-light. Breathe in deeply, and close your eyes. Watch the space behind your eyelids. The afterimage of the flame appears, then begins to morph: it becomes transparent, drifts, turns into a cloud of colour and shape. Observe without steering. Is it changing quickly or slowly? What are the main colours? Are there complementary colours? Is the centre different from the periphery? Do greens flow into blues, oranges into yellows? Notice patterns at the edges too.
4. Return to the flame. Open your eyes and focus again on the flame, with the periphery wide and the body felt. Simply staying with the flame is a challenge. If thoughts come, let them come; there is no room to follow them, because your attention is occupied with the whole visual field. You may notice a slow movement in the patterns at the edge of your vision, in the carpet or the floor.
5. Allow the body to move. Now sense whether there is a subtle swing in the body: forward and back, left and right, or a slow rotation. If there is, allow it. It may become a gentle, snake-like movement. Eyes stay on the flame, attention in the periphery, the body moving by itself. Then let go of all effort, close the eyes and let the body continue or come to rest, as it wishes, while you watch the after-light.
6. Palming. Breathe in deeply. Lean forward, elbows on your knees, and cup your palms over your closed eyes. Look into the darkness. It is not pitch black: there is a faint pattern of light. Invite it to grow, simply by attending to it. See whether blue appears, as a single spot or spread through the field. You are not creating anything; you are perceiving what arises.
7. Warmth and closure. Sit up and look once more at the flame. Hold your hands before it and feel the heat rising into them. Then close your eyes, cover them with your warm palms and breathe into whatever you perceive. Finally, let your hands rest, keep your eyes closed and simply sit, doing nothing, perceiving.
Fundament 1: Trataka, the yogic gaze
Gazing at a flame belongs to an old family of practices called trataka. The Hatha Yoga Pradipika (15th century) and the Gheranda Samhita list it among the purificatory practices: one gazes steadily at a small object until the eyes water, and then continues the gaze inwardly. The texts attribute to it a clarifying effect on the eyes and on the mind.
The version offered here is gentler. We do not force the eyes until they tear, and we add two elements that classical descriptions mention only briefly: the systematic exploration of the inner image, and the widening of attention to the periphery. In the tradition of the inner light, sometimes called prakasha, the external flame is a teacher that trains the mind to recognise light as an experience, and then to find that experience within.
Fundament 2: What the after-light is made of
From the side of physiology, the after-light has a clear basis. When you look at a bright flame, the photoreceptors in the central part of your retina adapt: their pigments are partly bleached and their sensitivity drops. When you close your eyes, that locally adapted patch keeps signalling for a while. This is the afterimage.
Afterimages often appear in complementary colours: a yellow flame may leave a blue or violet trace. This fits the opponent-process model of colour vision, first proposed by Ewald Hering in the 19th century, in which the visual system codes colour in paired opposites: red against green, blue against yellow, light against dark. When one side of a pair has been driven hard, the other side dominates for a moment. The drifting, morphing quality of the image comes from the ongoing recovery of the receptors, small eye movements and the brain’s continuous interpretation of a weak, changing signal.
The darkness behind your palms is not truly black either. Even in complete darkness, the visual system produces spontaneous activity, perceived as a faint grey or shimmering field, sometimes called eigengrau, and as phosphenes: sparks, clouds and patterns of light that arise without external light. This is the “pattern of light” you are invited to watch.
Knowing this does not diminish the practice. It shows that what we call seeing is always an active construction. In this meditation you watch that construction at work, slowed down and made visible.
Fundament 3: The wide field
Our central vision, served by the fovea, is sharp and detailed. The periphery of the retina is dominated by rods and is especially sensitive to movement and faint light. In ordinary life we live almost entirely in central vision: we point our attention at things, one after another.
Holding a central focus while opening to the whole field changes this habit. Many contemplative and martial traditions cultivate such a “soft” or panoramic gaze, and practitioners commonly report that it quiets verbal thinking and grounds attention in the body. That is also the experience in this practice: when attention fills the periphery, there is literally less space for thoughts. The slow movements you may notice in the patterns around you are a normal feature of peripheral perception during prolonged fixation, where stable images tend to fade, shimmer or drift.
Fundament 4: When the body starts to move
The spontaneous swaying that can arise in step 5 is known in many traditions. In kundalini yoga such movements are called kriyas; in Chinese practice there are forms of spontaneous qigong; in Japan, Haruchika Noguchi developed katsugen undo, a method of allowing the body’s own movement to unfold. The common principle is that when effort and control are released, the body shows movements of its own, often rhythmic and repetitive.
In this practice we neither produce nor suppress this movement. We allow it and stay present to it, eyes on the flame, attention wide. This joins the visual and the bodily: light in the eyes, movement in the body, awareness holding both.
The stance: witnessing without deciding
What you see behind your closed eyes can be described in the language of retinal adaptation, and it can also be experienced as a subtle interface between inside and outside, between us and what lies beyond our usual perception. This practice does not ask you to choose between these descriptions. It asks you to observe.
This is the attitude phenomenology calls epoché: bracketing our theories about what an experience “really” is, so that we can see what it actually shows. In the practice we cultivate the witness: the part of us that perceives colour, shape, movement and change without grasping or explaining. The flame becomes a training ground for that witness. Perhaps that is where the magic enters: not in what the light is, but in how we learn to be present with it.
Practical notes
- Place the candle on a stable, non-flammable surface, away from curtains and hair.
- Keep the gaze soft. Blink when needed; there is no need to force tears.
- If you have epilepsy, migraine triggered by light, or an eye condition, consult your doctor before practising with a flame.
- Palming here serves relaxation and warmth; it is not a treatment for vision problems.
- Begin with ten to fifteen minutes. Afterwards, sit quietly for a moment before standing up.
