On a physical level BDSM is commonly misconceived to be "all about pain".[26] Most often though BDSM practitioners are primarily concerned with power, humiliation, and pleasure.[26] Of the three categories of BDSM only sadomasochism specifically requires pain, but this is typically a vehicle for feelings of humiliation, dominance, etc. The aspects of D/S and B/D may not include physical suffering at all, but include the sensations inherited by different emotions of the mind