Meditation Sickness: Why Does Practicing Meditation Cause Illness?

Have you ever sat in meditation and felt a headache, tension, or even fatigue? If so, it does not mean you are unsuited to meditation; rather, you may have developed meditation sickness. This is a concept taught by Thầy Thích Chân Quang in his lesson on meditation sickness — an important warning for anyone on the path of practice.

What is meditation sickness?

Meditation sickness refers to illnesses that arise from practicing meditation incorrectly or incompletely. If you do not practice meditation, you may avoid these illnesses — but without practice, the mind remains darkened by delusion, forever drifting through samsara (cycle of rebirth). Thầy emphasized:

Without practice, the mind stays darkened by delusion, forever drifting through birth and death. Therefore, we must practice. And in practicing, we may fall ill.

Practicing is like a double-edged sword: used correctly, it helps us progress; used wrongly, it can cause harm. So instead of avoiding practice, we need to learn to practice correctly.

Why do some people practice incorrectly without falling ill?

Strangely, some people practice incorrectly yet never fall ill, while others fall ill right away. Thầy explained this through differences in constitution and blessings from merit and conditions. For example, some people break out in pimples from eating spicy food, while others eat spicy food constantly and suffer nothing. Thầy said:

Some people apply effort incorrectly yet still attain realization, still enter meditative concentration; while others apply effort the same way and immediately go mad. This is very strange.

So do not rush to conclude that because you have not fallen ill, your practice is correct. Thầy warned:

If you practice incorrectly, you may fall ill. But then you might say, "I have not fallen ill, so I must not be practicing incorrectly." No — being free of illness is simply luck; it does not mean your practice is correct.

We need to look soberly at our own way of practicing, never complacent about small errors.

Every method has its shortcomings

Thầy also pointed out that no method is absolutely perfect. Each method has its strengths and its shortcomings. For example, the method of reciting the Buddha's name is easy to practice, relying on other-power; but if we focus only on seeking rebirth in the Pure Land while forgetting to transform this world into a Buddha land, the Dharma will decline. Thầy said:

No method possesses every advantage; there is always a weakness on one side and a strength on the other.

Therefore, when we meet a teacher who praises their own method to the skies, we should stay sober and not be carried away. The path the Buddha taught begins with the foundations — regulating the body, the breath, ethics, and merit — slow perhaps, but certain.

Meditation sickness number one: headache

Headache is the most common ailment. According to Thầy, it has many causes. First, sitting in meditation while worrying and thinking. Second, placing too much attention on the head, causing the current of fiery energy to rise into the brain and create tension. Third, contemplating incorrectly. Thầy explained:

When that current of energy rises upward, it is extremely dangerous. We go mad because of that.

Vietnamese people generally have weaker yin energy in the lower body than other peoples, so even a little attention on the head can bring on a headache. We must learn how to prevent this.

How to prevent and cure meditation sickness

Thầy advised that when we feel tension in the head, we should immediately reflect that life is a dream, and let go of every concern. At the same time, we should move the mind down to the dantian, keeping the body soft and still. Thầy taught:

Life is only a dream. Think this strongly, then release everything so that there is no more thinking.

Place the mind below — below the dantian, below the belly, below the feet. Gently rest attention at one point in the dantian. Gradually, it will pass.

Sitting in meditation this way not only cures headaches but also rejuvenates the body. Thầy joked: if ten years from now an old acquaintance says, "My, how you have aged," then come find me and I will make it up to you.

Practice slowly but surely

The path of practice taught by the Buddha is built from the roots: regulating the body, the breath, ethics, and merit. Its drawback is that it is slow — but slow and sure. Thầy emphasized:

We go slowly, slowly but surely. Yes. Just do not be slow and lagging behind.

With an understanding of meditation sickness, we can avoid unnecessary risks and continue walking the path toward enlightenment safely.

Meditation is not a poison, but neither is it a harmless remedy. Practice with wisdom, knowing that prevention is better than cure. May you always be diligent and at peace.