Some of the Sadhus that I have met in India and Nepal :)

In Hinduism, sadhu is a common term for an ascetic or practitioner
of yoga (yogi) who has given up pursuit of the first three Hindu goals of life:
kama (enjoyment), artha (practical objectives), and even dharma (duty).
The sadhu is solely dedicated to achieving the fourth and final Hindu goal of life,
moksha (liberation), through meditation and contemplation of God. Sadhus often
wear ochre-colored clothing, symbolizing renunciation.