In general:

If you tame an animal in a dream, this refers to the fact that you can develop a relationship with the animal aspect of his own or control. If the dreamer himself tamed in his dream as an animal, it means that he needs in his life fixed borders.

Psychologically:

Something or someone in a dream or the exceptionally tame in the sense of dull and boring is required, the dreamer, to reconsider his lifestyle in this regard.

Spiritually:

Tameness: the spiritual self-control necessary.