I don't believe there is one right way to eat by no means. 

Always take into account your personal food preferences, health needs, activity level, cooking skills, schedule, and allow the experience of eating to be enjoyable as well.

With paying attention to how you feel after eating. this attention to the effect of the food and lifestyle you have is the practice of macrobiotics. Not what you eat. but the awareness and attention you have of the effects of what you eat, feel, and do.

And to tell you the truth. I didn't learn much about proteins until my father starting getting ill. I have always eaten the way I eat and just never worried about it.(wich isn't practicing a Macrobiotic mindset very well)

 Protein is one of the most abundant substances in our cells after water and has almost endless functions in the body. They account for the tough fibrous nature of hair, nails, and ligaments, and for the structure of our muscles (including our heart). Protein functions to build and maintain body tissues and structures and is involved in the synthesis of enzymes and hormones.

The greatest amounts of protein are needed when the body is building new tissue (increasing muscle mass) and when loss of protein occurs from injuries, infections or other causes.

 In addition, proteins are needed for forming antibodies that will protect the body from harmful infections.

Here is a little example of how much protein is in  just a couple of different plant based foods 

(if you are someone looking for numbers)

Plant-based Protein Foods