The Light Verse is a passage in the Qur'an that has inspired Sufis throughout the centuries.
God is like a flame. We are an oil lamp. Light radiates from the centre outwards, transfusing the oil, shining through the glass container and illuminating our niche.
"Allah is the light of heaven and earth.
His light may be compared to a niche holding a lamp:
the lamp is encased in glass,
the glass shines like a twinkling star.Its sacred oil is luminous
though the fire itself does not touch it.Thus we see Allah's light in layer upon layer."
Muhammad, The Qur'an, Sura 24,35.