Sources
The line that begins the project
חסידים הראשונים היו שוהין שעה אחת ומתפללין כדי שיכוונו לבם לאביהם שבשמים
The early pietists would linger for one hour and then pray, so that they might direct their hearts toward their Father in Heaven.
Attribution boundary
The Mishnah and Gemara provide the classical source from which YishHeh begins.
The phenomenological language, descriptive exercises, graduated intervals, journaling structure, and Elie Schulman’s personal account are contemporary YishHeh practice materials. They must not be represented as terminology or instructions stated by the classical sources.