There are some obstacles in this method.  I will recommend you how to solve these obstacles that may occur to the practitioner.

Strain, Dizziness, Giddiness, Suffocation

When we first begin our practice, we tend to concentrate.  We want to know, see, be and have.  This is not the right understanding.  If you know, see, be and have, your might get strain, dizziness, giddiness or suffocation.  This is not the correct practice.

            When thoughts arise so much, we do not like it and try to suppress them.  This brings us trouble.

            The correct method is practicing with ease.  Look far away and cultivate self-awareness lightly and gently.  Do not concentrate.   Move or walk comfortably and rhythmically with awareness.

Drowsiness

If you feel sleepy while practicing, you should change to another kind of work, for example, weeding, washing your face, taking a bath, washing clothes.  We should find a way to avoid the obstacle.

Calmness under Unawareness

            Calmness under Unawareness is called Piti (rapture), clinging to calmness.  This is an obstacle.  The cultivating of self-awareness is not to obtain this kind of calmness, but always be aware of the movements.

Vipassanu

After we have attained Roop-Nahm Objects, this is the end of the basic stage.  Someone will stop practicing because he thinks that he has attained the highest Dhamma.  At this stage, knowledge will arise endlessly and we will be proud of this knowledge.  When thoughts arise, he does not see them, and then gets into them.

One who attaches to Vipassanu will be talkative and arrogant.

The knowledge of Vipassanu will soon be forgotten and makes man too proud of himself.  This is called Vipassanu.

The solution is doing rhythmic movement with ease, do not concentrate or desire for the result.  Do the movements lightly and gently.

When thought arises, be aware of the bodily movements.

Jintańāna

When one realizes Paramanttha Objects, Piti (rapture) will arise.  One is delighted of this knowledge.

            In general, Piti is food but according this method, Piti is the obstacle of attaining the End of Suffering.

            When Piti arises, one will attach to it.  We should do the bodily movements vigorously and as much as we can to turn the mind away from Piti and back to the movements.  Do it slowly and rhythmically.  When self-awareness increases more and more, Piti will gradually fade away and the mind will return to the ordinary state.

            Suffocation, giddiness or strain may arise.  We should practice with ease, look far away and move gently.  We should not stop practicing because of these obstacles but continue our practice earnestly.  Do not sleep in daytime but rest at night.

Vipallāsa

According to the texts, Vipallāsa means seeing false as true, hell as heaven, evil as good.

Vipallāsa is the state of mind when one discovers something excellent and thinks that he can keep it.  So he leaves self-awareness behind to get that thing.  It is like it was stolen by a thief.  When he starts looking for it, it is no longer there.  It is hidden.

One should not leave self-awareness even at the End of Suffering or whatsoever.

I realized the End of Suffering after I attained it.  At that moment, I was in the state of Vipallāsa.  I clung to ecstasy because I had never been like this before.

I was walking back and forth and I felt like I was floating above the ground about 1-2 meters.  Actually, I was walking on the ground.  I clung to that ecstasy but it did not last for long.  Then I was aware of myself, “Eh! Why is it so?”

I began to review the Objects of Insight.  At this stage, you should review the Objects backwards and forwards, but this does not include Roop- Nahm Objects.

After reviewing the Objects, the ecstasy will gradually fade away.  The mind will return to the ordinary state.

Summary

If there is strain, dizziness, giddiness or suffocation, we should do the movements gently.  Do not concentrate.  Do it with ease, look far away, then the uncomfortable feelings will loosen by themselves.

The solving method of Jintańāna is the same.

            Vipassanu and Jintańāna must be solved by correcting the technique.  Do not review the Objects of Insight.

            In the case of Vipallāsa, we must review the Objects of Insight (Paramattha Objects).  Practice with ease.  When the Objects are clear, the strain will gradually decrease.

            Let thoughts arise, do not suppress them.

            When you practice, you must take care of yourself.  Do not expect other people to take care of you.  When anything that is not normal arises, you must stop practicing immediately.  The abnormal state will gradually decrease by itself.