For most people, the idea room for practicing Tai Chi is around 8 meters x 3 meters. However, you can practice Tai Chi in smaller spaces too. If you are a bigger and/or taller person you might need a little more room to practice in.
As long as the discipline does not interfere with Christian beliefs, it should not be a sin for a Christian to practice qigong. Although some religious leaders are cautious, qigong is not a religion and can therefore co-exist with an actual religion without sinning.
You can practice yoga and tai chi together as the two can complement each other nicely. However, you will have to make sure that the yoga routine doesn’t interfere with your tai chi, and vice-versa.
On your first Tai Chi class you should receive a formal introduction to Tai Chi followed by basic guided warm ups or stretches. You should enjoy a place of quiet, and together with a group of people (possibly also on their first Tai Chi class) learn the first moves by repeating after your instructor.
The best time to do Tai Chi is either in the early morning while the world is still waking up, or just whenever you can actually get to practicing around a busy schedule. These are the two main solutions for scheduling your Tai Chi practice.
A Tai Chi session can vary from 20-30 minutes, to 2 or more hours depending on what your goals are. A Tai Chi session of half an hour is long enough for its physical and mental benefits. For teaching Tai, or using it as a martial art, a 2-hour long session will be better.
Yes, like any form of physical exercise, Tai Chi can make you sweat despite arguments to the contrary. However, there are no guarantees that it will make you sweat and some adherents swear that Tai Chi sweat isn’t like “normal” sweat at all.
Yes. There are many Japanese students of Tai Chi who follow the Chinese practice and style. Tai Chi is a very popular hobby in Japan. It is also true that there is a Japanese martial art called Takiken which is similar to Tai Chi in certain respects.
It’s possible to learn Tai Chi by yourself in as little as 30-40 hours of practice. However, it will probably take about 3 years to master the basic forms and even longer to achieve mastery, whatever that means to you.