Yes with Brahmins of India who still follow the old age tradition i can say what Marco polo said is 100% True. To follow the tradition of India is very difficult and still I have seen people who have taken a Vow to speak the truth all their life.
Many chant Gayatri Mantra 24,00,000 . Some complete the cycle of chanting Gaytri mantra 17 Multiplied by 24,00,000.
It takes around 8 hours to chant Gayatri mantra 3000 times.
http://gayatri.awgp.org/KnowMoreAboutGayatri/TheGloryofGayatri/
This mantra gives lot of spiritual benefits and literally make the man god on this earth.
So tough indeed the life of a Indian Brahmin who still follow the age old tradition.
I am not a Brahmin but we go and touch the feet of Brahmins like those as they are the saints on this earth with such a austere and hard life they live.