When you prune a tree, bush or vine, the intent is to cut off diseased or injured parts that are not going to yield leaves, flowers or fruit. The pruning itself will help the plant to shoot forth new sprouts and it will become fuller and more vibrant, able to yield more.
Jesus says “I am the true vine, and My Father is the vinedresser. Every branch in Me that does not bear fruit, He takes away; and every branch that bears fruit, He prunes it so that it may bear more fruit.” (John 15:1-2)
To become a fruit bearing vine, you need to expect to be pruned so that you can bear lots of fruit. This is not the cleansing process. You have already been cleansed (John 15:3). The art of pruning you is to help you to grow and thrive. It is actually part of the healing and growing process. It gets rid of all that old stuff in order to make way for new growth.
If you didn’t get pruned, then you will have sporadic growth and all the injured parts would still be there. You would still have it in you and the new growth would only cover it over. Kind of like “sweeping the dust under the rug”, it would still be there, just hidden. Well Jesus doesn’t do that. He prunes you to remove the injured parts so that it is gone completely and there is nothing left but fine fruit bearing branches. And then He continues to prune you in order to keep you sprouting new growth and bearing more and more fruit.
It is important to know that if a plant is very injured, you don’t want to leave gaping parts by pruning all the injury away at once. That would leave it susceptible to other injuries. So you prune a little bit and wait. Once new growth has been established then you prune a little bit more.
Doing the healing in this way will make you stronger in faith and thicker in your defenses and will help you to have a closer relationship with God. It will allow you to grow at a rate that you can handle without further injury.
After that original pruning takes place then as you grow, you are still pruned over and over and over again in order to keep you sprouting new growth to bear more fruit and more fruit and even more fruit, so that you become as beautiful as the olive tree (Hosea 14:6)