How do you tap into your energy during yoga practice?

Today my yoga teacher led us through a posture that she said directs your energy up through the chakras. She’s also said that when she’s really into a deep yoga practice, she can feel her energy moving through each chakra center and throughout her body. I’ve tried to focus on it but I can’t seem to tap into this aspect…for me I’m just breathing and feeling my body. Am I missing something?