Sing Praise: The Physical Problems of Worship

Everyone loves music. I have not met a person who has denied hating music.
You can despise visual arts or chuff at the glittery facades of fashion, but everyone takes comfort within different genres of music.
I love worship music. If I were ever told to sing a song on the spot, the only songs I know or could sing are worship songs. If I sing to myself, they're always worship songs. I guess it's because the only time or reason I'd ever sing would be during worship.
They also comfort me in times of despair or give me hope when I'm stressed and disappointed. The enlighten me and make me realize something about life that I never thought of before, they make me more attune with God, art and the world we live in.
The church we're attending is quite 'radical' in terms of worship. The first time I attended, I watched as all these people would just raise their hands and jumping while singing (only seen within Christian events like AFC or TC, NOT in normal worship- that is Chinese services usually) and when we were asked to pray, people would yell out their prayers. Once we were split into two sides and told to face each other while singing which I found very awkward. This time there was one line in a song where it said "Lift your hands and spin around" or along those lines and the pastor comes up to the front and told us to take it literally. He made the worship team play it several times while we shuffled around in circles with our hands in the air.
And I thought "how often do we engage our body into worship when we're singing?"
We often think that the 'falling on our knees' or the 'raise our hands' or the dancing within songs is some far off symbolic interpretation of what is actually supposed to be a bodily and physical engagement of our body in worship.
If we are told to worship God with our heart, soul, mind: does that not encompass the body as well? So why do we hold back and restrain ourselves? I guess we're all self conscious and hold ourselves back from displaying any sort of physical movement that seems beyond the norm. It is a cultural thing but it should not be the reason why we hold back for we're all part of the body of Christ- all worshiping the same God with everything that we have. When I observe the people around me worshiping full heartedly and expressing themselves through gestures and forgetting everyone else, it draws me to them.
When one asks "why do you not clap your hands in worship?" and the other responds "because I'm really worshiping in my head- you can't see it," this seems to be a minor example of mind-body dualism. The mind and body should be as one so as our worship should unify us with other Christians and God.