The term "Joyous Life" refers to several related terms that appear in Tenrikyo scriptures and historical documents in the original Japanese. In the Ofudesaki, the term is written as yōki yusan, while in the Osashizu, it is written as yōki asobi and yōki gurashi. Early outlines of the Tenrikyo teachings use the terms yōkinaru yusan asobi and yōki yusan. The characters that make up yōki yusan/gurashi are as follows:
Yō is "positive", the same character as Yang in the Chinese Yin and Yang.
Ki is "spirit" or "energy", the same character as Qi in Chinese.
Yusan is "an outing to the mountain or fields", implying an outgoing life.
Gurashi is "livelihood", implying life in a more day-to-day sense.
History
Theology
Creation
At the focal point of Tenrikyo's ontological understanding is the positing of original causality, or causality of origin, which is that God the Parent created human beings to see them live the Joyous Life and to share in that joy. Tenrikyo teaches that the Joyous Life will eventually encompass all humanity, and that gradual progress towards the Joyous Life is even now being made with the guidance of divine providence. Thus the concept of original causality has a teleological element, being the gradual unfolding of that which was ordainedat the beginning of time.
Salvation
The Joyous Life is understood as the salvific state which individuals can work toward through prayer and practice in everyday life.
''Tannō''
Tannō, or "joyous acceptance," is the spiritual practice of the Joyous Life. It is the state of mind which accepts all occurrences in one's daily life positively and as the intention of God, including hardships.
''Hinokishin''
Hinokishin, or "daily contribution," is the physical practice of the Joyous Life. It is an expression of joy and gratitude that materializes in the world through service for one's community or surroundings.
Eschatology
Tenrikyo doctrine and tradition assert the spiritual maturity of humankind will gradually improve over many rebirths and countless millennia, and by so doing will grow in more joy and bliss and will get closer to the world of the Joyous Life. It is said that when the hearts of humankind have been adequately purified, God will inaugurate the world of the Joyous Life by bestowing a sweet dew on the basin to be placed on top of the Kanrodai, which when consumed, will allow people to live the full lifespan of 115 years without illness or misfortune, and die painlessly to be reborn. Therefore Tenrikyo eschatology maintains a progressive and a millenarian outlook on the future of humankind.
