Offering water to the Sun (thrice).
The term Sandhya derives from the root dhi , meaning to hold or perceive, combined with sam , implying totality or union. It signifies the precise moment of transition—the cusp where one state of being dissolves into another. In the Vedic worldview, time ( Kala ) is not a linear abstraction but a cyclical divinity. The Yajurveda Trikala Sandhyavandanam is the ritualized human response to the movement of this divine time. yajurveda trikala sandhyavandanam pdf sanskrit
Om Bhūr-bhuva-suvah (ॐ भूर्भुवःसुवः) Offering water to the Sun (thrice)
: Sandhyavandanam literally means "salutation to the twilight". meaning to hold or perceive