Rudraksha is comprised of two words Rudra, which is another name for Lord Shiva, and Aksha, which means teardrops. Hence, Rudraksha means tears of Lord Shiva
According to Shiva Purana, Rudraksha is said to have originated from the eyes of Lord Shiva in the form of tears that landed on Earth near Kailash Mountain and formed the Rudraksha tree
This is why the Rudraksha tree grows mostly in the Himalayan regions of Nepal and India.