In the later part of the Summer, or in a really rainy Summer, the Spleen and Stomach meridians are highlighted.
The element is earth and the colour is yellow and the emotion is contentment.
Here are two videos showing the location of the meridians
Here is an hour long yin class for Stomach and Spleen Meridians
Hero
Butterfly
Cat/Cow
1/4 Dog
Child
Dragon
Sphinx
Child
Cat Pulling Tail
Supported 1/2 Bridge
Shavasana
The Stomach is our primary organ of digestion, it sends usable nutrients to the spleen and the rest to our intestines. So it starts the process of deciding what to get rid of, and what to keep to nourish us. The Spleen continues the digestion, it takes the nutrients and passes them on to the rest of the body. It also acts as a blood reservoir, it destroys and recycles old red blood cells and is the place where white blood cells trap organisms. The Spleen nourishes all energy on all levels.
If these meridians are out of balance we can feel lethargy, weakness, and dullness, rhythms like sleep breathing and thinking will be off kilter. It can manifest as ulcers, anorexia, obesity, infertility, and feeling ungrounded.
If in balance, we can feel earthy sensual and full, and at home inside our self. These meridians represent our ability to take in nourishment on all levels, our ability to have spontaneity and contentment and being at ease wherever we are. We can also have clear thinking and mental coherence.
If out of balance, we can feel anxious, nervous and worried. We can crave sympathy. We can have dogmatic thinking obsessiveness and inflexibility
Here is a Sleep Nidra based on the Spleen and Stomach meridians.