Sanatana Dharma does not insist that God should be called only by a particular name or that God can be attained only through one prescribed path. Sanatana Dharma is like a vast supermarket where everything is available. It gives us the freedom to follow anyone of the paths indicated by the great self-realized souls, and even to open up a new path to the goal. There is even the freedom to believe or not to believe in God.
All doors cannot be opened with the same key. In a similar way, to open our minds we need different keys to fit our different samskaras and levels of understanding.
In Sanatana Dharma, the garment that is made is not cut to the same measure for everyone. Furthermore, for each individual, the garment may have to be remodeled at times, to fit the person’s stage of development.
Spiritual paths and practices have to be renewed according to the times. This the contribution the great souls have made to Sanatana Dharma. This dynamism and expansiveness are the hallmarks of Hinduism.
Source - The Eternal Truth By Sri Mata Amritanandamayi Devi, Amma