Tantra is a secret practice of transforming every action into a pure action, ie that of a Buddha or God. A puja is a special chanted prayer. A tantra puja ceremony will be prayer in which you praise, worship and do the practice of your particular "Yidam" or deity.In this practice you try and visualise your self as the deity and your world and enjoyments as the deities mandala and offerings, thereby creating only virtue with every action as apposed to non virtue when indulging in pleasures.
This practice is however not related to sex, this is an idea that was latter introduced in Europe and was labled Tantra.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.