Lutherans, much like modern Catholics (the two seem to differ
mainly in organizational layout these days, most of Martin Luther's grievances have been since corrected by the RCC..) and like most other protestants
(I dare not say "all", but it probably is not far off) consult with their god. They ask their god for advice and guidance, and claim to receive responses in various forms.
You can clasp your hands and ask your god to tell you how to confront your son about that magazine you found in his backpack, or you can brew some tea and look into the tea leaves for a message from the gods. These are fundamentally the same concept, except the tea leaves method is not blessed by Christians, and presumably the clasp hands method is not blessed by whoever reads tea leaves...
Prayer is functionally indistinguishable from divination.
Divination that is whitelisted by your flavor of Christianity is called "prayer". The sorts that are not whitelisted are called "divination" or "witchcraft." This can be seen clearly within Christianity when you consider the schism between some of the more extreme flavors of Protestantism and Catholicism. I have, on more than one occasion heard protestants describe various aspects of Catholicism as witchcraft and idolatry. Most of the accusations center around the issue of saints and the Virgin Mary, and whether it is acceptable to ask them to pray on your behalf. Many[all?] protestants do not consider this to be a blessed form of divination, thus the less mellow among them consider it to be witchcraft or whatever.