You can Spiritualize your Sexual Union. How?
At any situation, you should never forget to recognize the divinity within oneself and respect the divinity within your partner. Even during Sexual Union, if you don’t forget this and keep this concept in your mind, then the attention will not be in the physical interaction, but it will be in the union of the light. This is a very practical sutra. Spiritual people can understand the experience of this sutra.
Wish you a great day. Namaste.