You are the centre of that world. That is the world you live in. Now how will you change the world? By changing yourself.
No mind, no form, I only exist; Now ceased all will and thought. The final end of the Nature’s dance; I am it whom I have sought. A realm of bliss bare, ultimate, beyond both knower and known. A rest immense I enjoy at last; I face the one alone. I have crossed the secret ways of life; I have become the Goal. The Truth immutable is revealed; I am the way, the God-Soul. My spirit aware of all the heights, I am mute in the core of the Sun. I barter nothing with time and deeds; my cosmic play is done.
Those who are ignorant of the supreme purpose of life will never be able to attain nirvana (liberation) in spite of their observance of the vratas (vows) and niyamas (rules) of religious conduct and practice of shila (celibacy) and tapas (penance).

