Consider an Asana that you find energetically challenging and think about why you find you it challenging. An example may be Virabhadrasana 2, which may be particularly heavy or strenuous through the front leg. Consider a way you might practice this asana that may change the energetic feeling of the Asana. For the example of Virabhadrasana 2, this might be grounding the back heal against a wall to increase the stability and density of the back leg. Or practicing in front of the kitchen bench with the outstretched arms supported by the bench to help lift the torso.
Write a paragraph to describe your asana, why it is energetically challenging, and how you might practice to investigate or even change these energetics.