Hello Prachi,

Advaita (non-duality) is the theory that the individual soul and God are 'one and the same'. I personally explored and meditated on this concept for a number of years, but then came across another philosophy which to me is much more profound:

Acintya-bheda-bheda tattva (inconceivable one-ness and difference).

This philosophy promoted in recent years by Caitanya Mahaprabhu (b1486) is based on ancient yoga practice and describes how we are one with God in quality, but that He is much greater in quantity, with the actual specific nature of our one-ness and difference being beyond the range of mere logical/philosophical perception.

The realisation of this truth is said to be achieved by chanting the famous Hare Krishna mantra. Caitanya was the first person to promote the mantra to the general public regardless of caste, creed or qualification...

Best Wishes,

Das