What makes some frags "spiritual", others sensual?

Some frags seem to me to be clearly "spiritual". Roses and violets, for example, are very uplifting, and some traditions say that rose is the "scent of God". Saints and mystics were sometimes said to emanate scents of roses or violets. Also, of course, resins such as myrrh and frankincense have been used for thousands of years in religious ceremonies.
I believe the word for Rose and Spirit are similar or identical in Arabic - "wird". And a Sufi sheikh once advised me to meditate on the rose as a symbol of heaven.
High Mass in Catholic and Orthodox churches is scented with rich, gorgeous incense, sometimes with rose added, and is both sensual and spiritual, to me.
And yet, some rose scents are extremely sensual - Ormonde Jayne Ta'if, for example, and Lyric Woman, where the blend of rose and myrrh is rich and earthy. Incense frags worn on the skin can be very alluring, not spiritual at all!
Do you experience frags in this way?
If so, what would you class as spiritual, what as sensual? And what makes the difference? Is there a perfume note (or notes) that gives spiritual or sensual effects?
Or is the difference due to the setting and/or the person who wears them?

Glad some others think this way, too - and interesting to know differently we can experience the very same notes in frags. I take your point, Haunani, about density, and wonder whether this is the key, as you suggest. Incense wafts to the - often very high, gothic - roofs of a church or temple, and is diluted by the air. Roses smelled fresh in the garden, which is the image I associate with saints, have their scent diluted by the garden air, too. And refreshing, transparent rose scents, in which I include Caron Rose and Jo Malone Red Roses, do allow a different, lighter experience. Thanks to everyone who responded, lots to think about here.

What an interesting exchange! When I posted this thread, I didn't mean "sexual" for sensual, I meant, yes, appealing to the senses, bringing us in deeper touch with the body and the material world, appealing physically as a gorgeous scent. Whereas, to me, the more "spiritual" scents seem to raise my attention more towards intuitions and emotions, and towards the metaphysical, as opposed to the physical, world.

Hope this makes sense. I do think there is a difference, but obviously lots of people don't agree. Which is fine. Nice that we can all express our feelings in such a respectful, intelligent forum!

Yes, the fragility and transparency do seem to make a difference. And I also think "sensuous" may be the better word - thank you, seattlelight. But two points occur to me here: first, though churches may have wanted to cover up unpleasant smells with the use of incense, I don't think that was the original impetus to using it. The Egyptians, Old Testament priests, and many, many other civilizations burned incense for thousands of years in religious rituals. So I do think there's something interesting going on here, in the way that certain resins, woods and florals affect our brains.

And then, there's the saintliness of some scents, especially roses, violets and lilies. I don't mean that saints have been pictured with these flowers, or associated in other ways with them - I mean that some saints, while alive, seem to have emanated beautiful, floral scents, to the point that many people noticed it. And then, after death, some have continued to give off these scents. I don't know how or why. In the early 20th century, people exhuming the coffin of St Therese in Lisieux noticed these scents very strongly. And it's been experienced down the ages. I don't think all these phenomena were hallucinatory.

Yet, roses (and jasmine, too) are amongst the most aphrodisiac of scents, according to aromatherapists! So, sensuality and mysticism are linked in these smells, somehow. I think if scientists discovered how, and where in the brain these effects are experienced, we would understand a lot more about sex, sensuality and scent!