Sat nam!
I had a deep experience when doing Kundalini Lotus Pose and focusing at Muladhara, feeling the energy of the chakra connecting to the earth while leaving the chest open. By intuition, I feel that this posture works on the life basic energy, and the sexual energy, and balances them with the heart energy, especially it helps releasing inconscious fears, phobias and sexual problems derived from imbalance in the first and second chakras. This interpretation is mine, I would appreciate your comments or own interpretations!
Love and light to all of you.