I visited a Shinto love shrine while in Kagurazaka. Before you can enter Tokyo Daijingu you must cleanse your hands and rinse out your mouth with holy water. Afterwards you can go in, pray, and receive a fortune. From what I recall mine seemed to be promising. Additionally, you can purchase charms or blessing tablets if you really want some extra help from the Gods. After I prayed I bought myself a charm and peacefully wandered around the grounds taking in the serenity.
