In esoteric yogic-tantric literature, bodily fluids are considered to be potent expressions of self. Blood, sweat, saliva, semen are more than bodily emissions; they carry a person’s essence in them. When you sweat, you release droplets of yourself.
The same body of literature considers the breath to be the link between body and mind. Breath hovers between the physical and subtle and is a potent psycho-physical force. Either physical or mental exertion can alter your breathing pattern. You’re probably holding your breath right now – its a natural reflex to hold our breath when we concentrate on reading or listening to words. The exertion of mind alters the breath.
When you kiss with an open mouth, you mix breath and saliva with the person you’re kissing. You leave a part of yourself in their mouth and take their essence into your own. I always think of exchanging breath in a kiss as a magical moment. Not in the romantic sense but in the alchemical sense. For me, wishes fructify in the exchange of breath.
From an esoteric point of view, kissing is a big deal. Who do you want to share your essence with? Who’s do you want to imbibe? For those on a yogic-tantric path I suggest choosing kissing partners with care. Then the fun can really begin.