Step 1: Understanding the Concept:
Jain cosmology (Loka) divides the habitable world into several regions. The possibility of liberation and the highest spiritual states depends on the "Era" or "Time Cycle" prevailing in those regions.
Step 2: Detailed Explanation:
1. Bharat and Airavat Kshetras: These regions undergo cycles of six eras. Currently, they are in the 5th era (Pancham Kaala), where spiritual capacity is degraded. In this era, no one can attain omniscience (Kevala Jnana) or perform the highest meditation, Shukla Dhyana.
2. Videha Kshetra: This is a region where the spiritual environment is stable and similar to the 4th era of our cycle. Tirthankaras (like Simandhar Swami) are currently present there.
3. Spiritual Potential: Because the optimal conditions for high spiritual growth are permanent in Videha Kshetra, it is the only place where humans can currently perform Shukla Dhyana and attain liberation.
Step 3: Final Answer:
Currently, Shukla Dhyana is only possible in Videha Kshetra.