Why was 21 June chosen as International Yoga Day?
The Summer Solstice marks the transition of Sun from Uttarayana to Dakshinayana, according to ancient Vedic Calendar. The time of rejuvenation and reconstruction begins as the rains begin, ayurveda tells us.
According to Vedic Books, it was the day when Lord Shiva, first taught Yoga to his disciples. Because the knowledge of Yoga first descended from Shiva on this day, we can say June 21 is the Birthday of Yoga.
This is the logic advocated by Yogic Advisors for celebrating June 21 as International Yoga Day.
The United Nations passed the resolution declaring June 21 as the annual International Yoga Day after India’s Prime Minister Narendra Modi urged the International Community to adopt it as the International Yoga Day.
Every year in Northern hemisphere, the Summer Solstice falls on June 21. It is the day when Day is longest and the night is shortest. It is the day when Earth is at its closest distance from the Sun on its orbit.