The Egg in the Earth spell is known by several names - the frustrated egg, the stress egg, the secret egg, just to name a few.

This spell is a very old, widely known spell that is used by magickal people in many different traditions. It has many variations.

The purpose of the spell is to relieve you of your stress, frustrations, gossip and other things that shouldn't/can't be spoken aloud.

Needed:

1 egg

In some traditions, the egg that you choose for this spell needs to speak to you in some way, shape or form. Sometimes people choose a brown egg, others white. Some people choose a farm fresh egg while others are content to use one purchased at a grocery store. Some people go as far as to collect a duck or goose egg. The point is, it doesnt really matter where the egg comes from. The magick comes from within yourself, not the egg. BUT, if you feel a pull towards using a certain type of egg, then by all means, do so.

Next, take some time to "fill" the egg with your problems, stress, etc. Whatever it is that is holding you down. You can place the egg in front of you and talk to it OR you can hold the egg to your lips and like whispering a secret, tell it everything you need to get off your chest. Whichever method you choose, make sure that you hold nothing back. Get it all off your chest.

When you're finished, it is time to bury the egg.

The burying of the egg is very symbolic and it is an important part of releasing the energy into the Earth. Choose a place that means something to you. A garden, a park, the grave of a loved one.

Make sure the egg goes into the ground whole. 

And then, just let it go. Let the earth take care of your troubles.

Additional variation:

In old folk magick traditions, the egg in the earth spell is much more personalized.

For women, this means doing the ritual during their monthly cycle and personalizing the egg with menstrual blood (usually done with the initial of their first name just prior to burial or "coloring" the entire egg with menstrual blood).

For men, this means personalizing the egg with their semen (usually done with the initial of their first name just prior to burial or annointing the entire egg).

Personalizing the egg in the above ways is believed to aid the Earth in recognizing and confirming that these are YOUR troubles going into the ground and no one elses.

This all said, if the idea of personalizing your egg in this way disgusts you, then don't do it. In magick, all things that are part of you; that come from you; are important and powerful. But if you're not into that kind of thing, then don't force yourself to do it as it will only add confused energy to your ritual.