The screenshot she linked is from Donald Tyson’s Sexual Alchemy and I highly recommend you read the book.
It’s not sex it’s so much more, it is spiritual union. You must show the spirit unconditional love. You can’t do this if your mind isn’t in the right place, while there are entities that enjoy casual sex you’re going to want to get with a highly intelligent being that fills you with happiness and self worth.
The technique is to project a mixture of feelings of love and desire, but do not focus on the physical aspect. It’s about love and happiness not baseless pleasure, a loving connection must be established.