Question

in fourth veda what is the main part​

Answer 1

The fourth veda is Atharva veda

This is important to Hindus as it was told by God himself

Answer 2

The basic Vedic texts are the Samhita “Collections” of the four Vedas: Rig-Veda “Knowledge of the Hymns of Praise”, for recitation. Sama-Veda “Knowledge of the Melodies”, for chanting. Yajur-Veda “Knowledge of the Sacrificial formulas”, for liturgy.