Yoga Asana of the day: Siddhasana
From a seated position, bend one leg and place the heal near your perineum (genital area). Bend the other leg placing that foot above the other, against the pubic bone. If you are less flexible, approximate the best you can. Keep your torso engaged and strong, have your back straight yet with its natural curvatures, and shoulders relaxed yet not slumped. You should feel a balance of your shoulders above your hips. Place your hands on your knees in the mudra as shown in the picture. Do not lean against a wall or anything, as this will prevent the correct balance and the mental sensation that comes with it. Do this seated on the floor, your balance will be off if you are on a bed mattress.
Holding for 3 minutes is ideal, less is fine. Holding any asana even for a few seconds will benefit you, and help to build your ability to hold for longer. Release the legs, gently move them to release any tension, then do the same pose with the leg positions reversed and hold for the same length of time.
This pose helps with all nerve defects and nervous conditions, increases focus, and brings a sensation of wellbeing. It increases health of the genital area and the lumbar region. This is a great asana to do somewhere in the middle of a long hatha practice as it will restore your vitality to continue with the rest of your practice, or you can do this separate from hatha while meditating and while doing pranayama.
This is one of the easiest, yet one of the greatest, asanas to do. Sit in this posture while contemplating the Gods.