And why call ye me, Lord, Lord, and do not the things which I say? Whosoever cometh to me, and heareth my sayings, and doeth them, I will shew you to whom he is like: He is like a man which built an house, and digged deep, and laid the foundation on a rock: and when the flood arose, the stream beat vehemently upon that house, and could not shake it: for it was founded upon a rock. But he that heareth, and doeth not, is like a man that without a foundation built an house upon the earth; against which the stream did beat vehemently, and immediately it fell; and the ruin of that house was great.
Luke 6:46-49 KJV
The best advice to going deeper in Christ is Transparency. Jesus said the verdict of men’s condemnation is that He, the light had come, and that men loved darkness rather than the light, because their deeds were evil (John 3:19). They preferred to hide in the shadows rather than come forth and have their true selves exposed.
At the end of the Sermon on the Plain in Mark 6, Jesus said that the one who heard His words and did them was the man who “dug deep” and laid his foundation on the rocks. The practical application of that is the progress of continually learning to trust on the Holy Spirit on every level for every thing.