Common Mistakes and Obstacles

These things are common. The book's answer is mostly the same each time: do not forget yourself, and return to the movement of the body in the present (pp. 70 to 71).

Remedies in the book

SituationWhat the book saysPage
Lazy, bored, unwillingDo not make much of it; just know, and keep going with awareness. If sitting tires you, walk; if walking tires you, sit67, 69
Impatient, wanting it fastDo not control or force; practise "in the mood of playing a game"68
SleepinessDrive it off at once, with a "life or death" resolve. Switch to walking, sweeping leaves, washing your face or laundry68 to 69
Many thoughtsDo not suppress and do not follow; return to the movement. However many thoughts there are, as awareness strengthens they lessen59 to 60
Blank head, blank legs, feeling you will flyThis is not seeing; it is forgetting yourself. Ignore it and keep knowing the present movement70
Body feels not yours, fear arisesDo not fear the change; just remember to return to the body's movement71
Worry about going off the railsIt does not happen if you do not forget yourself and the body's movement; the danger is too much concentration without awareness71 to 72
Joy and other statesDo not cling and do not forbid; let them rise and pass73

Common mistakes in how it is done

Another teacher's list of deviations (paraphrased)

In one talk, Yihuan Xingzhe summarised eight common deviations in training awareness: over-analysing, chasing a thought-free state, practising only on the cushion, clinging to pleasant feelings, suppressing thoughts, watching from the side while still following habits, expecting quick results, and tightening up. Only the list is paraphrased here. Authorisation pending (no verbatim quotation until it is granted).

FAQ

What if I feel sleepy during practice?

Do not drag on. Drive it off at once with a "life or death" resolve, and switch to walking, sweeping leaves, washing your face or laundry (pp. 68 to 69).

What if I am bored and do not want to practise?

Do not make much of the boredom; know it and carry on with awareness. Walk when sitting tires you, sit when walking tires you (pp. 67, 69).

My mind goes blank and my body feels like it will fly. Is that enlightenment?

The book says it is not seeing, it is forgetting yourself. Ignore it and return to the present movement (p. 70).

Can Mahasati practice go wrong?

The book says it does not if you do not forget yourself and the body's movement. The danger comes from too much concentration without awareness (pp. 71 to 72).

What do I do about too many thoughts?

Do not suppress and do not follow; when you know a thought, return to the movement. As awareness strengthens, thoughts lessen (pp. 59 to 60).

Source: Luangpor Thong, The Principles and Method of Mahasati (Chinese title 正念動中禪的原理與方法; the English title is my translation), Q&A compiled by the Taiwan Mahasati association, Religious Culture Press, 2013. "p." means a page of that book; page numbers are to be verified against the book. Paraphrased, not quoted at length.