The Shivling, also called the Shiva Lingam, is a very important symbol in Hinduism. It represents Lord Shiva and Goddess Shakti coming together, showing the cosmic energy and the source of creation. The Shivling is usually a round or oval-shaped stone representing Lord Shiva's eternal and formless nature. It doesn't have a specific form, showing that Shiva is beyond time and space. The bottom part of the Shivling is called the Yoni, representing the feminine energy or Goddess Shakti. Together, they represent the world's balance of male and female energy.
People worship the Shivling because they believe it connects them to Lord Shiva, who is a very important God in Hinduism. Worshipping the Shivling is considered a very sacred and spiritual practice. It can bring blessings, spiritual growth, and protection from bad things.