It is said that among all internal potencies of Radha-Krishna, three of them are prime. They are -
.3) Hladini (pleasure potency)
of these Hladini is manifested from Krishna as Radha. (i.e) Krishna manifests his Hladini potency separately as Radha and thus engages in spiritual pleasure-pastimes with her.
How are the other 2 potencies manifested?