What is the fine-grained topic of the following text: Hindu scriptures like Shiv maha Purana, Shreemad Devibhagwat, Padma Purana, Ling Purana, Ashtamalikopnishad, Nirnayasindhoo, Mantramaharnava, Mahakaal Sanmhita, Rudraksha jabalopnishad, Vrihajjabalopnishad, Shivaswarodaya and Sarvollastantra ravishes on how Lord Shiva crossed the line of caste and creed and blessed all the four varnas; Brahmin, Ksatriya, Vaisya and Sudra, to use holy Rudraksha beads for their well-beings. Only return the topic.
The use of holy Rudraksha beads in Hinduism according to various scriptures.