Given the metaphor of sexual merging Scripture gives for Christ's love for the church . . .
there is a profoundly intense, deep, broad etc. sense of merging in the best of such physical sharing between Spirit-filled hubby and wife.
An aside--the Methodist MD and his wife insisted that sex was best when praying in tongues.
Anyway--given that as metaphor for a high level degree of an intense merging . . .
the individuals are still individuals. The FOCUS--FOR A TIME--is on THE MERGED 'ENTITY' but only for a time and only SEEMINGLY to the laying aside of individuality. Nothing is obliterated of the personalities, identities, individuality of the participants.
IN FACT, GOOD SEX ENHANCES THEIR PERSONS, THEIR IDENTITIES, THEIR PERSONALITIES.
Worship has been likened to making Love to God. I think the same is similarly true in the best of worship. A high degree of a sense of merging can be experienced. But we can't camp there. We leave enhanced in our persons, our identities, our personalities and hopefully with an intensified, qualitatively improved sense of GOD TABERNACLING WITHIN US.
imho.