If you're going to ask how to fly using your arms, without a plane, hot air balloon or hang glider then you should expect to get mocked!

Concentrate your chakra in such a way that there is a greater- or equal- pressure underneath you compared to above you?

Failing that, skydiving whilst flapping your arms might be your best bet. Do remember your parachute though, I was joking about the chakra thing

The pressure differential is the key if you want to stay afloat, but as yet I don't think there has been a method invented that didn't involve steady solid wings or other methods like balloons and helicopters. It's been tried in the past I think around the time of the Wright Brothers but was never successful for more than a few flaps.