NOW helps to speed up the healing. It is to request the Universe and Divine energies how important it is for you. Some people remain in future. They ask all wishes to happen in future. And future never comes.
With VK you ask a child ….a child says i want NOW.
FOREVER takes you to next wish.
You are mixing two concepts ….1 is way of requesting energy ie NOW FOREVER . Thats the intention
And other is operation part of VK…that it will send energy for 30 min. The energy requirement you will know…how many times.
I request you to read the learning posts and articles by Sharat Sir for more understanding. Because all these concepts are well explained by Sharat Sir. Also read articles on litairian website in category VK.