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The Buddha shares in brief the four illuminations - 1) the moon, 2) the sun, 3) fire, and 4) wisdom.
Āloka sutta - Illumination
"These four, bhikkhus, are the illuminations. What four? The illumination of the moon, the illumination of the sun, the illumination of fire, and the illumination of wisdom — these, bhikkhus, are the four illuminations. Among these four illuminations, bhikkhus, the illumination of wisdom is the foremost."