Aadays Tisai Aadays Aad Aneel Anaad Anaahat Jug Jug Ayko Vays
Source: Japji Sahib
Author: Guru Nanak
All honor to the One, Hail the Primal Being whose attributes cannot be described, Who is without beginning, the Unstruck Sound, and whose form is One through every Age.
This mantra is believed to instill the entire knowledge of the Universe without ever reading a book. It is the yogi's humble bowing to the infinite.
From Yogi Bhajan's Lecture on Self Reverence 02/26/1996:
"In this Slok, he totally completes the human anatomy, excellence, process, projection in the most clear words which one can understand. He says it with absolute clarity, sparing nothing.
Guru Nanak salutes God as a yogi, by using the yogi’s salute: Aadays. Aadays means, “I salute Thou.”
Aadays tisai aadays: I salute Thou. I salute Thou, again and again.
Aad Aneel Anaad Anaahat:
Aad: You are the beginning.
Aad. He describes all dimension of limitlessness.
Jug Jug Ayko Vays:Remains true through all ages, through all time.
-Guru Nanak, Siri Guru Granth Sahib, page 7 (from 30th pauree of Japji Sahib)
God is primal and pure with unknown beginning, Who cannot be destroyed, and Who remains the same in all Ages. Through all time You will remain." - Yogi Bhajan
This mantra information is from Spirit Voyage