Q.: Has the body any value to Self?
it is through the body’s help
that Self is realised.
What about diet?
Food affects the mind,
makes it more satvic (alive, vibrant, rhythmic),
for the practice of any kind of yoga.
Vegetarianism is absolutely necessary.
Could one receive spiritual illumination
whilst eating flesh foods?
but abandon them gradually
and accustom yourself to satvic foods.
once you have attained illumination
it will make less difference what you eat,
as on a great fire it is immaterial
what fuel is added.
Source: Conscious Immortality, Ch.8.