Practicing Sadhanas ,people like us cannot do it.In
Vaishnav Sadhanas the devotees adopt five different attitudes of love to god.

Vatsalya: that of parent to the child or
of the child to the parents.

Sakhya:of a friend to a friend

Santa: of the tranquil mind to
all-love:

Dasya:of the servant to the master.

Madhura:of the sweetheart to the beloved

          
In this the highest form of Sahana is Madhura- Bhava.-the
relation between God as beloved and the human soul as lover.In the masculine
form of Sri Krishna is personified the idea of Paramatman ,the formless
Existence ,Knowledge,Bliss Absolute-the Purusha,the Male principle of the
universe.Everything with form in the universe,whether gross or subtle is the
–Prakriti-Infinite nature or the Faminine principle,the consort of the
Purusha-personified as Sri-Radha`.The seeker takes up the attitude of Radha,the
cowherd girl of Vrindaban,whose burning love for Sri Krishna made her forget
everything but her sweetheart.In this Sadhana all forms of devotion are
consummated.

            When Great Sri Ramkrishna practised this Sadhana he had
so much turned himself in to a woman that other women of the household felt no
constraint in his company. These practices brought him the vision of Radha in a
short time.After this vision ,he began to consider himself Radha,longing for
the vision of Sri Krishna.and he was finally blessed with the vision of Krishna