How can I use Tibetan mantras and visualization to purify my aura?

Name: Aarav Banerjee

Date of Birth: 21 September 1998

Time of Birth: 5:15 AM

Place of Birth: Kolkata, India

I want to go beyond smudging and salt baths. Can you teach me personalized Tibetan practices—like mantras, visualization, or breathing exercises—that would help me cleanse and balance my aura effectively?