He once said to Swami Vivekananda:

"My son, suppose there is a bag of gold in yonder room, and a robber is in
the next room. Do you think that robber can sleep? He cannot. His mind will
be always thinking how he can enter that room and obtain possession of
that gold. Do you think, then, that a man firmly persuaded that there is a
reality behind all these appearances, that there is a God, that there is
One who never dies, One who is Infinite Bliss, a bliss compared with which
these pleasures of the senses are simply playthings,--can rest contented
without struggling to attain it? No, he will become mad with longing."

At length, after almost twelve years unceasing effort, and undivided
purpose Sri Ramakrishna was rewarded with what has been described as "a
torrent of spiritual light, deluging his mind and giving him peace."

This wonderful insight he displayed in all the after years of his earthly
mission, and he not only attained glimpses of the cosmic conscious state,
but he also retained the Illumination, and the power to impart to a great
degree, the realization of that state of being which he himself possessed.

Like the Lord Buddha, this Indian sage also describes his experience as
accompanied by "unbounded light." Speaking of this strange and overpowering
sense of being immersed in light, Sri Ramakrishna described it thus: "The
living light to which the earnest devotee is drawn doth not burn. It is
like the light coming from a gem, shining yet soft, cool and soothing. It
burneth not. It giveth peace and joy."

This effect of great light, is an almost invariable accompaniment of
supra-consciousness, although there are instances of undoubted cosmic
consciousness in which the realization has been a more gradual growth,