There is a fundamental flaw and misguided concept in the mind. It is the erronous concept that anything in the material world will give pleasure or content. There is nothing in this gross world that gives pleasure.
If that is the case then why do we enjoy sex food intellectual discussions etc? This is because of the wrong in born programming of the mind. The mind has already determined and said, this is what will make me happy and whatever that determination is, when it occurs, we are happy. An alcoholic has already determined in his mind that drinking will make him happy and he keeps drinking. A vegetarian has already determined in his mind that eating meat is bad and if he accidentally eats it, he becomes unhappy.
Thus the root cause of all this is the wrong programming in the mind about the pleasures in the material world will give me pleasure. An advanced soul does not need to convince the mind with intellect that the pleasures of life are not worth it. He automatically has it pre programmed that all pleasures in this life are worthless and he automatically moves towards God. Let me emphasize, once again, ALL PLEASURES. This includes the pleasure of spiritual discussions, intellectual thoughts (fantasies in reality), or the pleasure of even thinking one is spiritual.
For such an advanced soul, as per Swami Vivekananda, liberation is certain provided he finds a true guru. This person already has the key to liberation – true Vairagya and all he needs is a little kindle from a true Guru and he will surely be free.
Bhavin