Ye विडियो का शिर्षक है “Ban on Dalits in Temple: This Was the Actual Reason!”
किन्तु uusme reason नहि बताया है। Additionally, the word dalit (meaning oppressed) is a word coined by anti-Hindus for political reason. If a person or the shudra varna was not allowed to enter any local temple, then the reason was he/she was a sanitation worker (bhangi/chamaar, etc), and being poor, was dirty and stinky.
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Per Srimad Bhagavtaam Dharma has four pillars: तप, सत्य, दया, and पवित्रता (cleanliness/purity).
When a shudra (or any person) is not clean, he/she is forbidden to enter a clean temple.
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Now it is time that major temples build shower rooms where bhaktas can take a good bath, get some clean cloth free, and then enter temple for darshan or pujaa/haven etc.
jaya sri krishna!
https://youtu.be/f05RxUr_EFU?t=292