Buddhist-Meditation-Systematic-and-Practical

One should create in one's meditation a wisdom-fire
which burns the body completely, with nothing
remaining.
13. Yidam
Even the visualized yidam's body should be meditated
upon as empty.
14. Offering the Body
Suicide is forbidden by the Vajrayana, and instead the
practice of self-sacrifice through visualization is
stressed by every school, including the Gelugpa. In
visualization, the head is cut off and the skull used as a
great boiler. The four limbs and the internal organs are
cut into pieces and put into the boiler, to be offered as a
meal. Thus one's own body is treated as an offering to
the Buddhas, dakinis, gods, and protectors; and as alms
for the demons, spirits, ghosts, creditors, and enemies
from this life or past lives.
15. In Sleep
While sleeping, one should treat one's body as a corpse,
keeping one's mind united with the Dharmakaya light.
16. In Dreams
When dreaming, one should maintain the Buddha-body
839