Hello. Two and half years ago I practice meditation and I was initiated in kriya yoga 10 months ago. A few months ago I read your book "Cupid's poisoned arrow", which I found very interesting. Today I have a lot of interest in ejaculate as little as possible, especially for energy conservation and the resulting benefits that this can have on my spiritual evolution.
On the other hand, I have 5 years of relationship with my wife. We really enjoy our sexual life together. Currently now she is not interested in the practice of karezza or in try to avoid her orgasms. However, she doesn't see any problem that I don't ejaculate, but she doesn't want my intent to preserve my energy remove spontaneity, naturalness and enjoyment to our sexuality. She is not willing to assist me in my efforts to avoid ejaculation, but as I mentioned, she doesn't prohibit me to try that without affecting our sexual enjoyment.
I would like to get recommendations of ideas, books, websites, etc. that can help me to learn technics to achieve the preservation of my semen without the help of my partner and without she feels affected our sex life.
Thanks in advance for the guidance of all.