Equal night.
That's the literal translation of the word Equinox. And there are two of them each year.
One in the spring and one in the fall, when the sun is overhead the equator and the length of daylight and darkness are equal.
​The extreme happens at the time of the Solstices.
In winter the Solstice is the longest night.
In summer the solstice is the longest day.
The farther north you go, the more extreme this difference becomes.
Our native Northern European ancestors divided the circle of the year into two parts.
They were either going into the dark or going into the light.
Winter Solstice at about December 21 is the longest night and from that time forward the days begin to lengthen.
Going into the light.
Summer solstice at about June 21 is the longest day and from that time forward the nights begin to lengthen.
Going into the dark.
So to celebrate Spring Equinox is to mark the half way point between Winter Solstice and Summer Solstice.
Once we reach Summer Solstice, the Great Wheel will turn and we will begin, again, to go into the dark.
This eternal dance is  beautifully expressed in the shape and the meaning of the Dagaz rune.

Crazy:  Unsound.  Unbalanced.  Cracked or flawed.  Insane.
Craze:  Crack, break, crackle or shatter.
Craze and crazy are words with origins in Middle English/Old Norse.  Crasen.  It means literally to crack, break or shatter.
Julia Cameron makes the statement in her book, The Artist's Way:  Going sane looks like going crazy.
You know the feeling.  You're trying to shatter the illusions, break down the walls, crack open the shell to find yourself and set yourself free.
Maybe you've been living in a glass jar or behind glass.  You could see out but didn't realize you were trapped inside or behind and were living life as an observer but not being able to feel or touch.
For a long time I have quoted the above saying, going sane looks like going crazy, but lately it just didn't feel right, didn't feel accurate somehow.  So I did what I always do, I asked the question, why?  
What does the word sane really mean?
It's origins are Latin, sanus, healthy.
Showing or having reason.
Sound judgment or good sense.
Free from mental derangement.
Sensible, practical, realistic, rational.
Level headed, balanced, NORMAL.
Wow and whoa.
With a list of words like that defining sane and sanity, my next question was, 
Do I really want to go sane?  
Aren't these the very things that create the illusions, the walls, the barriers, the glass that keep me from being my amazing, unique, irreverent self?
I WANT TO GO CRAZY SO I CAN GO REAL AND AUTHENTIC.  I DON'T WANT TO GO SANE!
What about you?

Ingrid the Rune Woman
Wise and Irreverent
Awaken Your Hunger
IngridKincaid.com