Yoga means "union" and is the connections between the body, mind and spirit.
Yoga is a lot more than just asana (yoga poses)
To me, it is a lifestyle and a way of life.
This is my interpretation of the first two limbs of the Yoga three.
Yamas are ethical standards and sense of integrity. They are guidelines for how to behave towards others and yourself. There are five different Yamas
Ahimsa – Nonviolence
To refrain from violence towards others and yourself, both physically and mentally.
Satya - Truthfulness
To be honest with yourself and others
Asteya - Non-stealing
To refrain from both stealing physical objects, but also intangible entities, such as ideas or personalities
Brahmacharya - Moderation
To unite with the energy surrounding you but also be self-moderating with said energy, for example avoiding eating more than you need, and to listen to what your mind tells you within similar aspects.
Aparigraha – Non possessiveness
To neither posses nor desire more than necessary, to avoid material attachment, but instead be grateful for what you already have.
Niyamas are positive chores and habits that help you to maintain a healthy environment and spiritual existence.
Sauca – Purity
To both physically and mentally, maintain a clean environment, and keep your mind uncluttered to improve your attitude towards yourself and others.
Santosa – satisfaction
To be satisfied with what you have in life, and to appreciate who you are.
Tapas – Self discipline
To be self-disciplinary with your work as well as with your hobbies, and to restrain excessive impulses
Svadyaya - Study of self
To be self-reflective of both your mind and actions, and have a deep fundamental awareness of your self.
Ishvara Pranidhana - Spirituality
To feel the connection between your mind, body, and the inner spirituality, connected with everyone and everything around you, and to be balanced mentally and bodily.