How festivals such as birthdays are celebrated in Vedic culture
It is the Vedic system to observe all kinds of festivals, including birthday festivals, marriage festivals, name-giving festivals and festivals marking the beginning of education, by especially inviting brāhmaṇas. In every festival the brāhmaṇas are to be fed first, and when the brāhmaṇas are pleased they bless the festival by chanting Vedic mantras or the Hare Kṛṣṇa mahā-mantra.