Eda, Pingla and Sushamna track for Pran Vasu to materialize the truth of purification, Sun and the Moon is the cause and Yum is taken as the truth for Sushamna, throughout the life Sushamna act as touch down for interface changeover but at ultimate changeover, it act as static agent to block both Eda and Pingla and help soul to leave apart. Yum acts on the verdict of Shiva, Shiva accompany and accommodate soul for short to relieve it from suffering of detachment, Shiva induce the spirit with requisite truth to glorify self for the Next,
May Lord Bless all,
Thanks please