I still have a few doubts on some sentences. I really hope you can have a look at them.

1) You have to go (?) through the metal detector.
2) Nature was an instrument of God (but not "an The English Renaissance was less connected to (not with) the visual arts.
3) During this period (better: During that period, at that time) the was a revival of interest in classical culture.
4) Man (and not the man) had the unique function of linking together all creation. (and not: man had the only function to connect all creations).
5) The idea of a cosmic dance was connected with (to?) the notion that the created universe was in a state of perpetual dance.
6) An official checks your passport. At the end he gives you a boarding card with your name and seat number written on it.instrument in God's hands"?).

1) You have to go through the metal detector.

2) Nature is an instrument of God.

The English Renaissance was less connected to (not with) the visual arts.

3) During this time, there was a revival of interest in Classical culture.

4) Man had the unique function of linking together all creation.

5) The idea of a cosmic dance was connected with the notion that the created universe was in a state of perpetual dance.

6) An official checks your passport. At the end, he gives you a boarding pass with your name and seat number written on it.