The wide stretch pose, or konasana, is a classic second-center floor pose. Spread legs as far as you can manage and reach for your toes or ankles. Breath by natural breath, ease the upper half of your body towards the ground. Engage your upper thighs towards the hip sockets, which provides lift and extra support for your torso.
Don't get hung up on rushing to get your head to the ground. It really doesn't matter how far you come down. What matters is the therapeutic effect of releasing blocked stuck energy in the sacral. So, every time you meet some resistance, observe the sacrum area and free-breathe until your body softens. You'll experience a flowing sensation along the spine that will aid you as you come closer to the ground.
Now, bend your knees and thread your hands and arms under your knees for the turtle or kurmasana (please avoid if you have disc problems). Your elbows should meet the backs of your knees, your palms face down behind. Our limbs, which were so feathery in the wide stretch, are now a source of tension, literally shaping two crosses on the ground. The arch in the spine feels energetically like a river suddenly flowing backwards, upstream, against gravity. We are forced into stillness, our senses drawn inwards, and our consciousness freed from strong emotional energies.