Because the Twin Flame Love is so unconditional and pure that for it to fully sit in you, you must feel completely your true authentic self. This means that you have to shed or cleanse yourself of anything that is unclean about you by embarking on Self-Love.
Now, what brings this pain is not the connection or your Twin Flame, your Twin partner triggers you into this alchemy because you already have that past emotional pain lodged in you.
This pain that you feel in from within you and because the love for your Twin Flame is so strong, it empowers you to face this pain that is buried within you — this pain is triggered by physical separation from your Twin Flame.
Some of this pain includes Fear, loneliness, insecurities, past pain that you had repressed for so long in yourself. Sometimes this pain pushes either of the Flames to Run from the connection.
Any pain that you feel within yourself must be felt and brought to the surface to be cleaned out of you. Therefore you must Surrender to your Twin Flame connection.
I feel completely healed within myself but sometimes I still get surprised by mood swings and sadness.
Before you get to complete healing, you will realize that you are so grateful to your Twin for helping you to replenish your soul through Positive Affirmations & Soul Growth Inspirations.
Learning to let go to heal: Surrender means that you trust the universe to be in control of your journey, and having the inner power to let go of trying to control your Twin Flame experience empowers you to have the freedom to focus on accumulating happiness in your life.
Thank you for the question.
I wish you Blessings and love on your Journey!
Stay in Love.