Devanagari: अलख अलख ISO15919: alakha alakha also written as alakh alakh

The slogan of the yogis that means, "Brahm (the supreme power) is unperceivable; Brahm is unperceivable."

REFERENCE

Prema Rasa Madira - The Intoxicating Bliss of Divine Love, Vol. 1, Ch. 3