Till one becomes simple like a child one cannot get divine illumination. Forget all the worldly knowledge that you have acquired and become as ignorant of it as a child, then you will get the knowledge of the Truth.
Simple mindedness takes one easily to God. If a person is simple, spiritual instructions easily fructify in him, as seeds germinate easily and grow to bear fruit soon when sown in tiled soil free from stones.
Always you must discriminate in your mind between the true and the false, the eternal and transient; and then leaving aside all that is transient, you should fix your mind upon that alone which is eternal.
Sri Ramakrishna Paramahamsa