# Astrology [[bg/8/24–25|Bg. 8.24–25]], **[[cc/adi/13/89–90#translation|Ādi 13.89–90]]**, [[cc/adi/17/103#purport|Ādi 17.103]], [[cc/adi/17/104#purport|Ādi 17.104]], [[sb/5/13/4#purport|SB 5.13.4]] * as social service, [[sb/1/12/29#purport|SB 1.12.29]] * as Vedic knowledge, [[sb/1/12/29#purport|SB 1.12.29]] * at birth ceremony, [[sb/9/20/37#purport|SB 9.20.37]] * knowledge via, [[sb/10/8/5-5#purport|SB 10.8.5-5]] * marriage by, [[sb/9/18/23#purport|SB 9.18.23]] * of Kṛṣṇa’s advent, [[sb/10/3/1-5#purport|SB 10.3.1-5]], [[sb/10/3/1-5#purport|SB 10.3.1-5]] * validity of, [[sb/1/12/12#purport|SB 1.12.12]]