Complex sentence: Maharishi Sthapatya Veda is considered to be an element of the Maharishi Vedic Approach to Health, and the main modality of MVAH for improving the immediate environment.
Split into simpler sentences: Maharishi Sthapatya Veda is considered to be an element of the Maharishi Vedic Approach to Health. MSV is considered the main modality of MVAH for improving the immediate environment.