Sadhna of Tara Mahavidya involves good initiation by an equipped teacher (Guru) but yet one can achieve her blessings by other indicates of worship. Goddess Tara is pleased by chanting mantras, undertaking worship both around the picture, or by the assistance of Yantras (mystical diagrams) and by particular rituals https://www.youtube.com/watch?v=GMMWwN9ho2U&t=6s