You let go of the grosser forms of happiness, the grosser strategies for happiness, and get used to more and more refined ones. And they finally take… - Ṭhānissaro Bhikkhu

Maybe you can't make the whole body comfortable, but make at least part of the body comfortable and stay with that part. As for the pains, let them be in the other part. They have every right to be there, so make an arrangement with them. They stay in one part, you stay in another. But the essential point is that you have a place where the mind feels stable, secure, and comfortable in the present moment. These are the beginning steps in meditation.

Ardently alert means that when the mind is staying with the breath, you try to be as sensitive as possible in adjusting it to make it feel good, and in monitoring the results of your efforts. Try long breathing to see how it feels. Try short breathing, heavy breathing, light breathing, deep, shallow. The more refined you can make your awareness, the better the meditation goes because you can make the breath more and more refined, a more and more comfortable place for the mind to stay. Then you can let that sense of comfort spread throughout the body. Think of the breath not simply as the air coming in and out the lungs, but as the flow of energy throughout the whole body. The more refined your awareness, the more sensitive you can be to that flow. The more sensitive you are, the more refined the breath becomes, the more gratifying, the more absorbing it becomes as a place to stay.

In our culture ... people who don't submit to their lust are said to be repressed and have all kinds of warped beasts in the basement. So the part of the mind that thrives when it's freed from lust doesn't get a chance. It gets pushed into the corner of the basement. It becomes the repressed part.