Mayurasana is a challenge if you are slick with sweat.
You balance with your belly resting on your elbows in this arm balance yoga pose. However, if you are sweaty it is easy for your elbows to move apart and your belly to slide down between your arms.
Make sure that you dry yourself of, or use a towel or dry tee shirt between your elbows and belly when doing this pose.
The initial set up for mayurasana is to kneel with your hands pointing backwards between your knees. Have your hands as close as possible to each other. Likewise your elbows.
Move your feet back and straighten your knees as you position your belly on your elbows.
Even without lifting your feet you may find that this position "stimulates" your abdomen.
And actually that is one of the main therapeutic uses of this pose. It stimulates the gastric fire.
It is one of a series of poses that can be used in the treatment of colitis (inflammation or ulceration of the large intestine.)
To get your feet off of the floor you have to balance. And to balance you have to have as much of your body in front of your hands (which are your balance point) as behind your hands. Generally this means that in order to lift your feet you have to move your body forwards. Since your belly is on your elbows this means that you have to move your elbows forwards as well.
In the pictures below you can see that with my feet lifted the angle of my forearms is steeper. My elbows are more forwards.
Lengthen your neck as you do as your reach forwards. It may add a tiny little bit of leverage.
If you can't get forwards enough to get your feet off of the floor then bend your knees. This shifts your center of gravity further back. As a result, lifting my legs with my knees bent my forearms can be almost vertical.
For extra fun and excitement in this yoga pose, lift your legs higher. Your chin will come closer to the floor as a result.
This isn't a requirement of the pose. Some people will be happy just to balance, but it does show an extra degree of control and it's kind of fun too.
Plus, you may be able to get your forearms more vertical.
And what's a peacock if it doesn't strut it's stuff!!!
I also talk about Mayurasana in Balance Basics.