Entering a spiritual path is a rebirth. We are born to a new life, a new experience, a new understanding of what defines us. It is a tradition in many spiritual paths to receive a new name. Yogi Bhajan gave spiritual names based on numerology (ie, your date of birth) and the Siri Guru Granth Sahib (this is the collected writings of many of the Sikh Gurus and other saints and sages of the 15th and 16th centuries; it is seen by Sikhs as a living Guru).
Women are given a name followed by Kaur (princess) and men Singh (lion), giving the name nobility and courage.
Your spiritual name unfolds your deepest self. Every time you hear people speak your name, it is a reminder of the true Self. The more you vibrate it, the more effect it has.
Some people combine it with their legal name or adopt it full time or choose to be called by it only when they teach.
If you want to request a spiritual name, contact https://www.3ho.org/spiritual-names
Photo credit: Ved Luda