Thoroughly grounded

Colossians 2:7 KJV — Rooted and built up in him, and stablished in the faith, as ye have been taught, abounding therein with thanksgiving. Rooted. Rizoō. To cause to strike root. To strengthen with roots. To render firm, to fix, to establish. To cause a person or thing to be thoroughly grounded.

Take forceful possession in your mind

Hebrews 4:11 KJV — Let us labour therefore to enter into that rest, lest any man fall after the same example of unbelief. Enter. To take forceful possession of in your mind. That’s what your labour is about. Because once you’ve got it in your mind, you will have it in your hands.