The existence of guru is eternal. Sach means right, true, real. It means Guru Nanak is real from ages and will remain true. The opening line of the Guru Granth Sahib and each subsequent raga, mentions ik onkar: Worldly Illusion Māyā, defined as a temporary illusion or "unreality", is one of the core deviations from the pursuit of God and salvation: where worldly attractions give only illusory temporary satisfaction and pain that distracts from the process of the devotion of God. However, Nanak emphasised māyā as not a reference to the unreality of the world, but of its values. In Sikhism, the influences of ego, anger, greed, attachment, and lust, known as the pānj chor ('five thieves'), are believed to be particularly distracting and hurtful. Sikhs believe the world is currently in a state of kali yuga ('age of darkness') because the world is led astray by the love of and attachment to māyā. The fate of people vulnerable to the five thieves, is separation from God, and the situation may be remedied only after intensive and relentless devotion. Timeless Truth According to Guru Nanak, the supreme purpose of human life is to reconnect with Akal ('The Timeless One'). However, egotism is the biggest barrier in making this connection. Using the Guru's teaching remembrance of nām (the divine Name of the Lord) leads to the end of egotism. Guru Nanak designated the word Guru ('teacher') to mean the voice of "the spirit": the source of knowledge and the guide to salvation. As ik onkar is universally immanent, Guru is indistinguishable from Akal and are one and the same. One connects with Guru only with accumulation of selfless search of truth. Ultimately the seeker realises that it is the consciousness within the body which is the seeker/follower of the Word that is the true Guru. The human body is just a means to achieve the reunion with Truth. Once truth starts to shine in a person's heart, the essence of current and past holy books of all religions is understood by the person. Liberation Guru Nanak's teachings are founded not on a final destination of heaven or hell, but on a spiritual union with the Akal, which results in salvation or jivanmukti ('enlightenment/liberation within one's lifetime'), a concept also found in Hinduism. Guru Gobind Singh makes it clear that human birth is obtained with great fortune, therefore one needs to be