Tibetan dream yoga and the practice of staying awake through sleep

Milam, dream yoga, is one of the Six Yogas of Naropa — a set of advanced practices transmitted in the Tibetan Buddhist tradition and traced to the Indian mahasiddha Naropa in the eleventh century, with roots in earlier Indian tantric material.

It is not, in its own terms, a technique for having interesting dreams. It is a contemplative practice with a specific doctrinal purpose, and understanding that purpose explains why the techniques take the form they do.

What it is for

The tradition holds that the apparent solidity of waking experience is a construction, and that recognising this directly — rather than merely believing it — is the point of practice.

Dreams offer an unusually clear demonstration. In a dream, a whole world appears convincingly real and then turns out to have been constructed by mind. Recognising this while it is happening is training for recognising the same about waking experience.

The practice sits within a larger framework including bardo teachings concerning the transitional states between death and rebirth. The reasoning is that a practitioner who can maintain awareness through the dissolution of the dream state has some preparation for maintaining it through the dissolution at death, which is understood as a considerably more disorienting transition.

The stages

Traditional presentations describe a progression, and the parallels with modern lucid dreaming technique are close enough to be striking.

Recognising the dream as a dream. The foundational step, equivalent to achieving lucidity. Preparation includes daytime practice — repeatedly regarding waking experience as dreamlike, which functions much as a reality check does, and setting a strong intention before sleep.

Overcoming fear. The practitioner is instructed to deliberately enter frightening dream situations — fire, water, precipices — having recognised that nothing in a dream can harm them. This is close to what modern nightmare treatment achieves through lucidity, arrived at by an entirely different route.

Transforming. Deliberately changing the content — multiplying objects, changing their size, transforming oneself into other forms, visiting other places. The purpose is not entertainment but demonstration: repeatedly experiencing that the apparently solid is malleable.

Dissolving. Letting go of the dream content entirely and resting in awareness without object. This shades into the clear light practice.

The techniques

Several are described, and they overlap substantially with what contemporary lucid dreaming practitioners arrive at independently.

Daytime preparation. Regarding all experience as dreamlike throughout the day. Functionally, this is reality testing with a doctrinal rationale.

Intention at sleep onset. Strong resolve to recognise the dream, held while falling asleep. Functionally equivalent to mnemonic induction.

Sleeping position. The lion posture — on the right side, one hand under the cheek — is traditionally recommended.

Visualisation at the throat centre. Focusing on a syllable or a point of light at the throat chakra during sleep onset. This has no obvious modern equivalent, though it functions as an attentional anchor of the kind used in wake-initiated lucid dream techniques.

Waking during the night. Traditional instructions include waking after some hours and returning to sleep with renewed intention, which is precisely the wake back to bed protocol.

That a contemplative tradition and a twentieth-century sleep laboratory independently converged on interrupting sleep after several hours and returning with a held intention is a reasonable indication that both were responding to the same underlying physiology.

Where they differ

The convergence should not be overstated, and the differences matter.

Purpose. Modern lucid dreaming is generally pursued for experience, for problem-solving, or for nightmare treatment. Dream yoga is pursued for insight into the nature of mind, within a framework of ethical training and philosophical instruction. Traditional teachers generally regard the practice as inappropriate outside that context.

The dreamless goal. Clear light practice — awareness during dreamless sleep — has essentially no counterpart in sleep science, which treats slow-wave sleep as a state of markedly reduced consciousness. Whether the reported attainment corresponds to anything measurable is an open question; a small number of studies of experienced meditators have found unusual EEG patterns during sleep, and the work is preliminary.

Emphasis on stability over control. Modern practitioners frequently pursue elaborate dream control. The tradition treats transformation as a demonstration exercise, not an end, and regards attachment to spectacular dream experiences as an obstacle.

What the research says about meditators

Several studies have found that experienced meditators report higher rates of lucid dreaming than non-meditators, and some have found associations between mindfulness measures and lucid dream frequency.

The proposed explanation is metacognitive: both practices train the capacity to observe one's own mental state, which is precisely the faculty that permits recognising a dream as a dream.

The studies are mostly small, cross-sectional and reliant on self-report, so the direction of causation is not established. It is nonetheless a reasonable hypothesis and one of the more testable claims connecting contemplative practice to sleep.

Approaching it

If the interest is in the practice as a practice, the tradition is emphatic that it requires a qualified teacher and a foundation in the preliminaries. Extracting the techniques and using them for entertainment is possible and is what most Western accounts have done.

The general cautions about deliberately cultivating states where the waking-dreaming boundary becomes porous apply here as they do to any lucid dreaming practice — and traditional presentations, notably, contain their own warnings about instability and about pursuing the practice without adequate grounding.