In Jainism, there is no doctrinal teaching that uses or reveres yoni and lingam as sacred symbols. Jain practice centers on the Tirthankaras (the awakened teachers) and their symbols or emblems, which are chosen to identifiable them, not as sexual or cosmic symbols.

Key points:

• The Jain path focuses on the soul (jiva), karma, and liberation, not on male/female generative imagery.
• Each Tirthankar has a specific emblem (lanchhan) and is depicted in a formless, or guided, way in Jain art, but not with yoni-lingam symbolism.
• There is no significant difference between Digambar and Śvetambar regarding yoni or lingam; neither tradition treats these as part of Jain doctrine or worship.

In contrast, outside Jainism, the terms yoni (feminine principle) and lingam (masculine principle) are used in some Indian religious traditions to symbolize cosmic creation and sexual union, especially in Shaivism. But this is not part of Jain philosophy or practice.

If you’d like, I can share a simple Jain explanation of how symbols for Tirthankaras are used and what they mean, from authentic Jain sources.