Incense of Abrelimin would be best,
or also Dragon's blood.
But for the de facto standard for limiting or confining
energy would be in fact to cast a circle, one:
mentally - circummambulation performed during casting
physically - a thick barrier, enforced with candles,
circummambulation performed afterwards.
The circummambulation is an attempt to use your own
soul as a means of invoking forces into the circle
to make it more efficacious.