In Sanskrit, an ancient language of India, yoga is defined as yoking, binding, and/or connecting. The good news for us is that our yoga practice can be defined as however we define "connecting." For you, that may mean connecting to a higher power, connecting your mind and body, connecting to your most integrated self, etc. 
This is the difference between a proper yoga practice and simply exercising.
Specifically, hatha yoga is one of six branches of yoga and makes up the majority of the yoga I teach.  Hatha yoga focuses on the physical postures (asanas) and breath control (pranayama). I lead with a vinyasa-based yoga practice through various poses and breath work to help slow down the mind, allow the body to heal itself, strengthen muscle, treat pain, and create a space of intentional integration.  Yoga is my personal favorite tool to develop an understanding of the "mind-body connection." It's a phrase you often hear, though most may feel a vague sense of its context. The body can be a great tool to help slow down and restore the mind, and vice versa. Opening the major muscle groups and stretching for longer periods of time while integrating breath work (pranayama) increases blood flow throughout the body to optimize organ function, releases various "feel good" neurotransmitters, helps muscles become more elastic to prevent pain, and allows the body to heal itself in a number of ways.

My wellness philosophy is, "cultivating healthy habits on a daily basis to attain better physical and psychological outcomes."
My approach to wellness varies from developing a healthier relationship with your phone, social media (or lack thereof), healthy emotional management and consistency, cognitive behavioral therapies, relational conflict, procrastination, etc. My favorite and most effective strategy for consistency is to gratify the experience as much as possible, especially those which aren't always easy or pleasant. A "feel-good productivity," in simple terms. No one has to motivate themself to eat dessert, or to scroll social media for hours, or to put off that task that you know should've been taken care of weeks ago; instant gratifications. Obviously, many decisions will simply never feel pleasant, nor should they.
It's rare that any accomplishment worth appreciating was easy to achieve.
Though, incorporating habit stacking, mindfulness-based work ethics, and trading what you desire immediately for what you desire most, your potential awaits. Find intention for the wellness in your life that you want to improve.

Physiological wellness: Body and brain. What's your relationship with exercise? Are you feeding your body and mind fulfilling nutrients?
Psychological wellness: Mental health and behavior. How are you priming yourself for the day? How are your decisions affecting your emotions?
Spiritual wellness: Meaning and purpose. What is your reason for getting out of bed? Who are you serving?
Meaning equals emotion. How is the meaning you attach affecting your emotional landscape?
Social wellness: Relationships and connection. We can't understand everything we need to know about ourselves, by ourselves. Are those in your life helping you grow? How many people would attend your funeral?