Translation of postura

The human is capable of recognition of the world with its ingredients. Frost presents us with a poem in which everything is white and bright. The picture he gives us seems to be very peaceful.
The other visitors in my group were from the United States, Canada, Germany and from other parts in Mexico. I need to say that it was so much fun to meet people and spend an entire trip with them.
Sorry for bothering you with so many questions. You are going to be my first online language course. The more I trust you and your website, the more I will use it and recommend it...No problem...