Read this story that refers to a prayer Ramakrishna made to the Divine Mother where he asked for pure love, not a mixture of truth and untruth.
The prayer: After my vision of the Divine Mother, I prayed to Her, taking a flower in my hands: ‘Mother, here is Thy knowledge and here is Thy ignorance. Take them both, and give me only pure love. Here is Thy holiness and here is Thy unholiness. Take them both, Mother, and give me pure love. Here is Thy good and here is Thy evil. Take them both, Mother, and give me pure love. Here is Thy righteousness, and here is Thy unrighteousness. Take them both, Mother, and give me pure love.’ I mentioned all these, but I could not say: ‘Mother, here is Thy truth and here is Thy falsehood. Take them both.’ I gave up everything at Her feet but could not bring myself to give up truth.”
The reason: This reflects his teaching that God is Truth. To seek a mixture of truth and untruth would be to seek a mixture of God and un-God, which he saw as a contradiction in purpose for spiritual seeking.
Spiritual discipline: Ramakrishna taught that one should focus on the “sugar” of truth and discard the “sand” of untruth to realize God, viewing truthfulness as the essential spiritual discipline for this age.
Know Thyself 