¹One day, Sangjenim recited the following to His disciples:

²事之當旺은 在於天地요 必不在於人이라
사지당왕 재어천지 필부재어인
然이나 無人이면 無天地故로
연 무인 무천지고
天地生人하여 用人하나니
천지생인 용인
以人生으로 不參於天地用人之時면
이인생 불참어천지용인지시
何可曰人生乎아
하가왈인생호
The prosperity of a work depends upon heaven and earth, not necessarily upon humans. Yet, in the absence of humans, it is as though heaven and earth do not exist. Hence, heaven and earth beget humans and consummate their purpose through them. You have been born as a human being in this era when heaven and earth consummate their purpose through humans, so how can you be considered a human if you do not take part?