Jai Sri Ganesha,
Veins in the physical body are channels like the canal but not dependent on gravity flow,
Traverse current regulate their flow and the source of this current lies with the truth of eternity in self itself,
And these veins do needs to cleanse in truth with the breath, here starts the process of internal cleansing,
As the man starts with the process through respective discipline, inner vision and inner ear start communicating with self in spirit with truth,
May Lord bless all,
Thanks, please