Radha Krishna
The common separation of Sakti and saktiman, i.e. Female and Male principle in god arrives at the conclusion Sakti and saktiman are the same. Each and every god has its partner, 'betterhalf' or Sakti and without this Sakti he is sometimes viewed being without essential power. It is not uncommon feature or Hinduism when worship of a pair rather than one personality constitutes worship of God, such is worship of Radha Krishna in traditions worshiping Krishna, as svayam bhagavan, who is male, include preference and veneration to his Radha, who is worshiped as supreme. Its an accepted view that union of Radha and Krishna may indicate the union of Sakti with the Saktiman, and this view is existing well outside of orthodox Vaishnavism or Krishnaism.
From the Vaishnava point of view the divine feminine energy (shakti) implies a divine source of energy, i.e. God as shaktiman. "Sita relates to Rama; Lakshmi belongs to Narayana; Radha has Her Krishna." As Krishna is believed to be the source of all manifestations of God, "Shri Radha, His consort, is the original source of all shaktis" or feminine manifestation of divine energy.
A number of interpretations according to traditions possess a common root of personalism in the understanding of worship. Specifically Caitanyaite Gaudiya Vaishnava doctrine and mission is fiercely "personalistic," proclaiming the supremacy of Krishna, the identification of Caitanya as Radha-Krishna, the reality and eternality of individual selves, and a method for approaching the absolute reality and the Deity as a person first and foremost.
Jiva Goswami in his Priti Sandarbha states that each of the Gopis exhibits a different level of intensity of passion, among which Radha's is the greatest.
In his famous dialogs Ramananda Raya describes Radha to Caitanya and quotes, among other texts, a verse from Chaitanya Charitamrta2.8.100, before he goes on to describe her role in the pastimes of Vrindavana.
One of the prominent features of Manipuri Vaishnavism for example is worship of the forms together, in this tradition, among others, devotees do not worship Krishna alone, but Radha-Krishna. Rasa and other dances are a feature of the regional folk and religious tradition and often, for example, a female dancer will portray both 'male' Krishna and his consort, Radha, in the same piece.
Read more about this topic: God And Gender In Hinduism