The Twofold Vedic Religion

                                                   
                 The Lord created the universe, and wishing to secure order therein, He first created the Prajapatis (Lords of creatures) such as Marichi and caused them to adopt the Pravritti Dharma, the Religion of Works. He then created others such as Sanaka and Sanandana, and caused them to adopt Nivritti Dharma, the Religion of Renunciation, characterised by knowledge and indifference to worldly objects. It is the twofold Vedic Religion of Works and Renunciation that maintains order in the universe. This Religion which directly leads to liberation and worldly prosperity has long been practised by all castes and religious orders (varna ashramas) - from the Brahmins downwards- who sought welfare.

How Karma-Yoga is a means to the Supreme Bliss

Though the Religion of Works, which, as a means of attaining worldly prosperity, is enjoined on the several castes and religious orders, leads the devotee to the religion of the Devas and the like, when practised in a spirit of complete devotion to the Lord and without regard to the (immediate) results, it conduces to the purity of the mind (sattva-suddhi). The man whose mind is pure is competent to tread the path of knowledge, and to him comes knowledge; and thus (indirectly) the religion of Works forms also a means to the Supreme Bliss. Accordingly, with this very idea in mind, the Lord says:
"He who does actions, placing them in Brahman" (the Supreme Reality) ……"Yogis perform actions, without attachment, for the purification of the self."
- Gita, ch. 5, verses 10 & 11

From Viveka-chudamani of Sri Shankaracharya
verse 11
Work leads to purification of the mind, not to perception of the Reality. The realisation of Truth is brought about by discrimination and not in the least by ten millions of acts.

Hinduism is God centred
Other religions are prophet centred
Sanatan = Eternal   Ved = Knowledge
By Sri Shankaracharya