The Deeper Life Experience

Colossians 2:10
and you are complete in Him, who is the head of all principality and power.

Colossians 3:1 If then you were raised with Christ, seek those things which are above, where Christ is, sitting at the right hand of God.


2 Corinthians 5:21
For He made Him who knew no sin to be sin for us, that we might become the righteousness of God in Him.


1 Corinthians 6:19
Or do you not know that your body is the temple of the Holy Spirit who is in you, whom you have from God, and you are not your own?

We are complete in Him, raised with Christ, the righteousness of God in Him, the temple of the Holy Spirit...
I don't think you can go any deeper than that can you? We are told to grow in grace, mortify the deeds of the body, resist the Devil, pray without ceasing, take up our cross, etc. Most of this deeper life stuff leads to people measuring themselves by themselves and comparing themselves among themselves.(2 Cor. 10:12) Too much navel gazing to see how you are doing, rather than looking away from yourself to Christ.

 

I don't know about a "deeper life"; but I do believe that the Bible teaches we are to grow in maturity, with a greater knowledge and understanding of God. cf Hebrews 5:11-14