Yoga For Beginners 30 Day Challenge. Welcome back to Day 3. Today we'll be practicing the poses that we did in day one and two, including a nice stretch for the hamstrings. We'll practice Tadasana or Mountain pose, and called samastitihi (means steady balance). We'll spend some time on Tadasana today and we'll review it a lot because it's a "blueprint" pose for all of our standing poses, meaning that there is some part of Tadasana in all of our standing poses. We'll add 1/4 Sun Salutes as we build up to full Sun Salutations or Surya Namaskar over the next couple of weeks.