VK gets aligned with the user. Even if you are not using VK, simply wearing VK helps.
It keeps your aura bombarded with Cosmic energies, saves you from negative energies, keeps you more positive, reduces your anger and other negative emotions. keeps you providing non stop shield.
VK is providing energy not only to the person who is wearing VK, but also to the person(mostly babies and infants) near the VK user.
But if you need to send energy to something special and specific, you need to request to VK. Then simply wearing VK would not be enough.