Gradually, Harinath became familiar with Ramakrishna and began to ask all sorts of personal questions. “Sir,” he asked one day, “how can one become free from lust completely?” Sri Ramakrishna replied: “Why should it go, my boy? Give it a turn in another direction. What is lust? It is the desire to get. So desire to get God and strengthen this desire greatly.” Sri Ramakrishna’s way of teaching was simple, natural, and very effective. He did not ask his disciples to mortify themselves. He said, “The more you go towards the east, the farther you will be away from the west.” The more you increase your love for God, the more your lust, anger, and jealousy will decrease.
Seek the Highest, always the Highest, for in the Highest is Eternal Bliss. If I am to hunt, I will hunt the lion. If I am to rob, I will rob the treasury of the king. Seek the Highest. —Swami Vivekananda (CW/V5/Notes from Lectures and Discourses/On Jnana-Yoga)
Note: Sri Ramakrishna gave different answer to the same question by Swami Yogananda