Line of Practice for Mental Development

Luang Por Thoon wrote Line of Practice for Mental Development shortly after he attained arahantship. Though the book is short in length, it contains more than enough for one to follow in Luang Por’s footsteps. It covers the entire path of Dhamma practice, starting from practicing concentration (samādhi) in order to establish steadfast focus (that which is called “poo roo”, or heightened focused consciousness), to using wisdom (paññā) to contemplate the body and mind, to ultimately extinguishing the five aggregates (khandha) of form (rūpa) and mentality (nāma) and attaining enlightenment (nibbāna).


“When it comes to seeing the body, remember the chosen defect well and keep your mind focused on it. Use that defect as your basis. Do it often and your ability to focus will become more skilled.”

— Page 9


“Before your mind becomes pleased with external forms and sounds, your mind must first be pleased with your own self without realizing it. This is called upādāna-khandha.”

— Page 42

  • Author: Venerable Ācariya Thoon Khippapañño
  • Translator: Mae Chee Neecha Thian-Ngern
  • Series: Dhamma Legacy
  • Paperback: 95 pages
  • Publisher: San Fran Dhammaram Temple
  • Publication Date: November 2025
  • Language: English
  • ISBN: 978-1-958426-09-8

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