This is a longer meditation on Medicine Buddha – to remove obstacles, esp. those relating to health and achieving a favourable rebirth, and activate a swift path to enlightenment.
As Lama Zopa Rinpoche said: “One of the best healing meditations is that on the Medicine Buddha, who is the manifestation of the healing energy of all enlightened beings.”
The puja involves chanting prayers to the Seven Medicine Buddhas and reciting the Medicine Buddha mantras.