Your third eye is located at the center of your brain in what is known as the pineal gland. Every person has a third eye and it is awakened when you dream. Your goal is to open your third eye while you are awake as well.
Sanātana Dharma (Devanagari: सनातन धर्म meaning "eternal dharma" or "eternal order") which has been proposed as an alternative name for Hinduism (Hindi Hindu Dharm हिन्दू धर्म,) "Hinduism" is a fairly modern term promoted first by Westerners.
Mahadev - beautiful Shiva, a perfect form to meditate on.alternatively one can meditate one one's favourite deity (Isht Dev) such as Rama/ Krishna/ Divine Mother Durga-Parvati (the consort of Lord Shiva).