Hinduism: What is fastest way to join in marriage to the Goddess and abide in Mani Dvipa?

Hinduism is NOT all about Tantra. When will you understand that. In fact, it has always been looked down upon by the first 3 Vedas. 4th Veda was Atharva Veda which collected, categorized, edited, elucidated, etc. your Tantra.