The three dots above the swastika represent the three jewels of Jainism: Samyak Darshan (Right Faith), Samyak Jnan (Right Knowledge), and Samyak Charitra (Right Conduct). We should have all three: right knowledge, right faith, and right conduct together, then only can we achieve the liberation. The right knowledge means having the knowledge that soul and body are separate and that the soul, not the body attains the salvation. The right faith means one must have faith in what is told by Jinas, who were omniscient. The right conduct means that our actions should be void of attachment and hatred.
At the very top part of the Jain Universe symbol is a small curved arc. This arc represents the abode of the Siddhas. It is known as the Siddhashila. It is the final resting place of the liberated souls. The dot represents a siddha. In order to achieve this stage, a soul must destroy all attached karmas. Every living being should strive for this state of the Salvation or Liberation.