For an Analytical Approach to the study of the Mind based on Patanjali Raja Yoga, you might find the following helpful;
* Yoga and Western Psychology: A Comparison by Geraldine Coster - https://archive.org/details/in.ernet.dli.2015.189086/page/n1 - This is an old book so the "psychology" part might be outdated but nevertheless the approach taken to look at Raja Yoga as Practical Applied Psychology is something i believe is the correct way.
* Samkhya Darshan: Yogic Perspective on Theories of Realism by Swami Niranjananda Saraswati - https://www.amazon.com/Samkhya-Darshan-Perspective-Theories-... - The model of the mind in Raja Yoga is based on the earlier Samkhya Philosophy. The "Mind" is considered a layered model with layers called "Mahat, Buddhi, Ahamkara, Manas etc." This book is one of the best on Samkhya.
* Yoga and Western Psychology: A Comparison by Geraldine Coster - https://archive.org/details/in.ernet.dli.2015.189086/page/n1 - This is an old book so the "psychology" part might be outdated but nevertheless the approach taken to look at Raja Yoga as Practical Applied Psychology is something i believe is the correct way.
* Samkhya Darshan: Yogic Perspective on Theories of Realism by Swami Niranjananda Saraswati - https://www.amazon.com/Samkhya-Darshan-Perspective-Theories-... - The model of the mind in Raja Yoga is based on the earlier Samkhya Philosophy. The "Mind" is considered a layered model with layers called "Mahat, Buddhi, Ahamkara, Manas etc." This book is one of the best on Samkhya.