So I am very pleased that you are keeping this center nicely in our own standard by performing yajna, by sankirtana, and today is Radhastami. You perform. Our yajna is sankirtana, and Srimati Radharani is the pleasure potency of Krsna. Radha krsna-pranaya-vikrtir hladini saktir asmad ekatmanav api deha-bhedam gatau tau, sri-caitanyakhyam prakatam adhuna tad-dvayam caikyam aptam [Cc Adi 1.5]. When Krsna… Krsna is one, ekam advitiyam. But eko bahu syat, He can expand Himself. So when He wants to enjoy, so the pleasure potency is manifested from His personal body. That pleasure potency is Radharani. Radharani is not ordinary living entity. Radharani is Krsna’s personal pleasure potency, hladini-sakti.

So just today is the appearance day of hladini-sakti.

From Srila Prabhupada’s lecture on Radhastami, Srimati Radharani’s Appearance Day, Bhagavad-gita 18.5 – September 5, 1973, London