"deepest aspect" is a correct and usable phrase in written English
You can use it to refer to the fundamental, most important part of something. For example, "Exploring the deepest aspects of the human soul is the main goal of this study."
"Infertility is an obstruction in various parts of a woman's health mental, emotional, spiritual and physical and that's why the deepest aspect of a woman's being might not be doing what it is meant to do," she says.
Quite generally, Quine's rejection of the Principle of Tolerance is the deepest aspect of his disagreement with Carnap.
After a gentle supramucosal cleaning, submucosal plaque samples and peri-implant sulcus fluid were collected at the deepest aspect of each implant site by means of sterile paper points (i.e., each was left in place for 30 s).
One sterile paper point per site was inserted into the deepest aspect of the periodontal pocket or gingival sulcus.
A cotton-tipped swab, placed in the deepest aspect of the DFU, was marked where the swab intersected with the plane of the peri-wound skin.
Yet, just as psychoanalysis can reveal the deepest aspects of the human psyche, so can a collection – and it is both fitting and fortunate that Freud was a keen collector.
I would not know the profound pleasure of every day growing older with the only person in the world with whom I shared the deepest aspects of my life.
But what I was greatly fascinated by was the way some special souls were like a breath of fresh air, having the ability to dance to the deepest aspects of our emotional and rational dimensions while others were like irritating intruders that were part of the environment, yet made no effort to connect or positively interact.
If Ms. Gray allowed for more moments of introspection, however, the deeper aspect of her songs might surface.
The urethra enters it on the flattened deep aspect that lies against the perineal membrane, traverses its substances, and continues into the corpus spongiosum.
"Doing science made me realise that even the simplest things are hard to understand and that makes me suspicious of people who believe they've got anything more than an incomplete and metaphorical understanding of any deep aspect of reality," he told the Guardian.
