This video explores Jinyoung Ssangkum Ryu, the Two Swords system of JSKR-Haedong Kumdo, as presented in Think Out of the Box, a foundational text written by Grandmaster Kim Jeong Seong.
The video begins with a faithful voice-over reading of the original text, followed by complementary slides and chapters in which Master Frank Heininga breaks down the terminology and meaning in a clear and accessible way. These follow-up chapters are intended to help viewers move beyond literal translations and better understand the essence and purpose of Jinyoung Ssangkum Ryu.
00:00 Original Text Voice Over
02:27 Plain Meaning (simplified)
03:52 Essence over Literal Meaning
04:41 Why Two Swords?
05:45 From System to Life
06:26 Memory and Integration
Key themes explored include:
The meaning of Jinyoung (ηθ±) as truth expressed through action
Ssangkum (ιε) as two swords training one unified mind
Ryu (ι‘) as a living system of practice
How sword training supports awareness, balance, and harmony with nature
Applying martial principles to daily life β with or without the sword
Rather than memorizing many definitions, this video emphasizes condensed understanding, practical insight, and ease of remembrance, in alignment with the Grandmasterβs teachings on Do (ι), Ki-Mu (기무), and lifelong self-cultivation.
This video is intended for:
Martial artists and Haedong Kumdo practitioners
Students of Jinyoung Ssangkum Ryu
Anyone interested in Do (ι), self-development, and conscious living
π This video is shared in honor and gratitude to Grandmaster Kim Jeong Seong and to all practitioners who walk the path with sincerity, humility, and continuous practice.

