In Jainism, "Sarvārth Siddhi" refers to the attainment of all desirable objectives or the state of achieving complete spiritual fulfillment—essentially, liberation (moksha). The term "Sarvārth Siddhi ke Dev" (देव) can be interpreted in a few related ways within Jain tradition:

1. Sarvārth Siddhi as a Heaven:

According to Jain cosmology, "Sarvārth Siddhi" is the highest heaven (the uppermost region among the sixteen heavens—Devaloka) where celestial beings (devas) reside. The souls who have accumulated extraordinary punya (merit) but are still bound by karma may be born as gods (devas) in this realm. However, even these devas are still subject to the cycle of birth and death and have not attained liberation.

1. Sarvārth Siddhi ke Dev:

The devas (gods) who reside in the Sarvārth Siddhi heaven are known as "Sarvārth Siddhi ke Dev." They enjoy great pleasures and comforts, have long lives, and possess divine powers, but they are not considered liberated souls (Siddhas). Jainism teaches that even life in the highest heaven is impermanent, and only liberation (moksha) is eternal.

1. Role in Jain Worship:

Although devas are respected, Jains do not worship them as supreme beings. Instead, the ultimate goal is to become a Siddha (a liberated soul), not a deva. Jains primarily revere the Tirthankaras and Siddhas, who have transcended the cycle of birth and death.

In summary: "Sarvārth Siddhi ke Dev" are celestial beings residing in the highest heaven according to Jain cosmology. While they enjoy immense happiness, they are not liberated and remain within the cycle of samsara (birth and death). The ultimate aim in Jainism is to become a Siddha, not a deva.