On page 106 of book “Healing Mantras” by “Thomas Ashley Farrand”, it is mentioned
“For general purposes, Swaha is used as a Mantra ending if you are twenty-nine years of age or older”
As an example it says, before 29 years of age you should chant
“Om Sri Shanaishwaraya Namaha”
And after 29 years of age one should chant
“Om Sri Shanaishwaraya Swaha”
I am not sure whether it is relevant only to the above mantra or to all the mantras.
I want to chant these two mantras
“Om Gum Ganapatayei Namaha”
And
“Om Shrim Shriyei Namaha”
Should I chant these two mantras as it is or should I end them with Swaha. I am 29 years and 4 months old.