Maharishi Mahesh Yogi, the founder of Transcendental Meditation, was a spiritual leader who dedicated his life to spreading the practice of meditation and promoting inner peace and harmony. He taught his followers a set of key principles that are still relevant and widely practiced today.

One of the key principles taught by Maharishi Mahesh Yogi is the concept of Transcendental Meditation itself. He believed that through regular practice of this technique, individuals could experience a state of pure consciousness, or "transcend" beyond their thoughts and emotions. This state of transcendence is said to bring about inner peace, clarity of mind, and a deeper understanding of the self.

Another important principle taught by Maharishi Mahesh Yogi is the idea of natural law. He believed that there are universal laws that govern the functioning of the universe, and that by aligning ourselves with these laws, we can live a more harmonious and fulfilling life. This includes living in harmony with nature and following a healthy and balanced lifestyle.

Maharishi also emphasized the importance of self-improvement and personal growth. He taught that by developing our full potential and expanding our consciousness, we can achieve greater success and happiness in all aspects of life. This involves cultivating positive qualities such as compassion, creativity, and inner strength.

In addition, Maharishi Mahesh Yogi stressed the importance of community and collective consciousness. He believed that when individuals come together in a group to meditate, their energies combine and create a powerful effect that can bring about positive change in the world. This concept is known as the "Maharishi Effect" and has been studied and documented by scientists.

Furthermore, Maharishi emphasized the importance of living in the present moment. He taught that by focusing on the present and letting go of worries about the past or future, we can experience true joy and fulfillment. This is a key principle in the practice of Transcendental Meditation, as it involves letting go of thoughts and simply being in the present moment.

Lastly, Maharishi Mahesh Yogi emphasized the importance of spreading love and compassion. He believed that by radiating love and positivity, we can create a ripple effect that can positively impact those around us and the world as a whole.

In conclusion, Maharishi Mahesh Yogi taught his followers a set of key principles that revolve around the practice of Transcendental Meditation, living in harmony with nature and natural laws, personal growth and development, collective consciousness, living in the present moment, and spreading love and compassion. These principles continue to be widely practiced and have had a profound impact on the lives of many individuals.