This is Card No. IV - Power - from the Goddess Tarot. IV is normally The Emperor in a standard deck, but since all of the images in this deck are of goddesses, the male cards take on different names. The Little White Book says:

Power: Freya

Freya, the Norse goddess of creativity, love, and beauty, shows that true power lies in the ability to discriminate between aggression and passivity--and the ability to choose between them at the right time.

Meanings: The ability to use power wisely. Awareness of one's power. The ability to lead and inspire others. Knowledge of how to "work the system."

In Seventy Eight Degrees of Wisdom, Rachel Pollack says that cards III and IV, the Empress and Emperor, symbolize the parental archetypes. She says, "he symbolizes the laws of society, both good and bad, and the power that enforces them."

Further, "he indicates the stability of a just society that allows its members to pursue their personal needs and development. The natural world is chaotic; without some kind of social structure we could each spend all our lives fighting to survive."

Pollack also says that the Emperor can represent a time of stability in a person's life, but can also represent a person who holds great power over the querent, such as a father, husband, lover--someone who dominates the querent's life.

From Encyclopedia Mythica (re Freya):

In Norse mythology, Freya is a goddess of love and fertility, and the most beautiful and propitious of the goddesses. She is the patron goddess of crops and birth, the symbol of sensuality and was called upon in matters of love. She loves music, spring and flowers, and is particularly fond of the elves (fairies). Freya is one of the foremost goddesses of the Vanir.

She is the daughter of the god Njord, and the sister of Freyr. Later she married the mysterious god Od (probably another form of Odin), who disappeared. When she mourned for her lost husband, her tears changed into gold.

Her attributes are the precious necklace of the Brisings, which she obtained by sleeping with four dwarfs, a cloak (or skin) of bird feathers, which allows its wearer to change into a falcon, and a chariot pulled by two cats [shown in the card]. She owns Hildesvini ("battle boar") which is actually her human lover Ottar in disguise. Her chambermaid is Fulla. Freya lives in the beautiful palace Folkvang ("field of folk"), a place where love songs are always played, and her hall is Sessrumnir. She divides the slain warriors with Odin: one half goes to her palace, while the other half goes to Valhalla. Women also go to her hall.

From LearnTarot.com:

The Emperor represents structure, order and regulation - forces to balance the free-flowing, lavish abundance of the Empress. He advocates a four-square world where trains are on time, games are played by rules, and commanding officers are respected. In chaotic situations, the Emperor can indicate the need for organization. Loose ends should be tied up, and wayward elements, harnessed. In situations that are already over-controlled, he suggests the confining effect of those constraints.

The Emperor can represent an encounter with authority or the assumption of power and control. As the regulator, he is often associated with legal matters, disciplinary actions, and officialdom in all its forms. He can also stand for an individual father or archetypal Father in his role as guide, protector and provider.