Master GongSun Taoism - Taoist Meditation - Cultivation of Realization - What is your true Essence?

Textbook from Taoist Meditation: Methods for Cultivating a Healthy Mind and Body - Compiled and Translated by Thomas Cleary
Textbook from Understanding Reality - Translated by Thomas Cleary
Textbook from Wen Tzu: Understanding the Mysteries - Translated by Thomas Cleary