Yoga is not just a form of exercise, but a way of life. Vinyasa is a Sanskrit word and it basically means connection. Vinyasa yoga is movements synchronized with motion. Another way of explaining Vinyasa is 'flow yoga', because the asana smoothly moves one into another and almost forms a dance like fashion.
One very familiar feature in Vinyasa yoga is that the teacher instructs the student to move from one posture to another based on an inhale and an exhale. The Vinyasa starts with a very basic, Surya Namaskara. So you should start with a simple vinyasa and go for a more complex one, reported Indiainteracts.
In terms of yogic asana, we can interpret vinyasa yoga as a connection between movement and breath. When vinyasa is used as a noun, it helps in describing a series of three poses, which are a part of Surya Namaskar. Vinyasa yoga has originated from Ashtanga Vinyasa Yoga by a Yogi named Sri Tirumala Krishnamacharya.
The strength of this asana is in its diversity. There is no rule or philosophy that the instructor has to follow, so the scope of moulding the asana according to the individual personalities and quirks. Hence, it is important to get a good instructor who helps you in relating it to you.
Vinyasa yoga can be a fun and challenging way to work out. However, if you are new to yoga or are not used to exercising, you may want to start with a gentler form of yoga.