This lucky talisman is used to appease the malefic Vedic planets, '
Rahu' and '
Ketu'. These twin planets are referred to as the serpent's head and tail and some believe that this is a mythical description of a black-hole.
When these two malefic planets encompass the remaining planets in a birth chart, they are believed to cast a negative shadow over that individual's life, resulting in a lack of good fortune, hardships and struggles. This locket may be used in conjunction with the larger, fixed
'Kal Sarp Yantra'.