The following is an excerpt from Lonerwolf.com:
By: Mateo Sol
There is one particular state of consciousness that can change your life forever.
This moment can only be described as “ecstatic” in that you experience your connection to life expand significantly. In this moment you feel that life is full of beauty and sacredness, but this feeling and phenomenon is somehow objective and outside of your individual self.
Theologian Rudolf Otto called this experience “numinosum.” But in this article we’ll refer to it as the mystical experience.
All throughout history, the mystical experience has been referred to as a “religious” or spiritual experience, where the few mystics that recorded their experiences reported it as a rapturous and undifferentiated sense of joyful unity with all of existence.
The Candle in the Dark
The best way to describe a mystical experience might be with an allegory. The ancient Hindu tradition of Advaita Vedanta has an interesting one:
Imagine that you are in a completely dark room. You’ve been told that in this room lives a very large snake. As you sit in the room, you can see its silhouette and you feel great fear as you contemplate the potential for it to bite you at any moment. But one day there is a flash of light which illuminates the room and you see that what looked like a snake is in reality a rope.
Although the flash of light was momentary, it gave you a glimpse of the truth. All of a sudden your long-held fear vanished entirely, and your experience in the room was never the same ever again.
This is what a mystical experience feels like: it is like a flash of truth that releases you from your limited sense of self and gives you a taste of a reality that somehow feels more real.
9 Characteristics of the Mystical Experience
Every person’s mystical experience varies in length and intensity. Have you had a mystical experience? Here are a few defining characteristics:
1. Conscious Unity
The boundaries of where you perceive your individual consciousness and identity (ego) to begin and end vanish. Instead you’re left with a boundless and infinite union with all that is around you.
2. There Is No Time or Space
With a lack of a definable identity or spatial recognition, your sense of time feels infinite. You go from perceiving time from moment-to-moment as a static individual, to perceiving it as a stream of eternal present moments.
Mysticalexperiences.net 2018
Mystical Experiences of Reality 
Excellent.
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