The deliciousness of milk and honey 
is the reflection of the pure heart:

From that heart the sweetness 
of every sweet thing is derived.

The heart is the substance,
and the world the accident.

How should the heart’s shadow
be the object of the heart’s desire?

Is that pure heart the heart that is
enamored of riches or power,

or is submissive to this black earth
and water of the body,

or to vain fancies it worships in the darkness
for the sake of fame?

The heart is nothing
but the Sea of Light.

Is the heart the place of vision
of God–and then blind?

~ Rumi
Mathnavi III, 2265-9