Sweat and Tears Look the Same

Sweating comes with yoga, I practice Power Flow Yoga in a hot room. When I first started it was really hard for me to be that hot. As soon as my body started sweating it would drive me crazy, my head would itch as the sweat started, and I had a hard time concentrating on what the teacher was saying because I wanted to stop sweating. It took a long time for me to embrace that feeling. Now when I start sweating I welcome it and know that is the moment when I start working, when my body it cleansing itself of all the bad stuff. When I stand in warrior 2 position and see the sweat rolling off of my arms I feel a sense of accomplishment. 
There are a lot of things mentally that I have struggled with, and there are times when I am practicing yoga and I have cried because of something that is weighing heavy on my heart or a situation that felt overwhelming to me at the time. The  good thing about practicing yoga in a hot sweaty room is that tears and sweat look the same. Crying is an emotional release, not something I readily do in my real world, but on the mat I can't even hide from myself.
I don't know if I can quite put my finger on why yoga is so emotional sometimes but maybe it is because on the yoga mat it is all about me, I can't check Facebook, or my phone, I can't even check the time, I have to be totally checked into me. I want to create a better me each time I am on the mat. It is taking years to shed some of the bad habits and negative talk that I have bombarded myself with over a lifetime. Slowly letting go of past pain, disappointment and mistakes. Realizing that it is ok to be me and that each day I want to be a better version of me. It is hard. It is a constant struggle. I am making baby steps and sometimes that is frustrating. On the mat I can be real with myself, I can cry and no one is the wiser, but me. Healing emotional pain is difficult but on the mat I can make small strides and when I come home and peal the soaking wet workout clothes off of my body I know that I have succeeded in my yoga practice for that day.