What bodies do you interact with when sitting at a table, walking on the road, working with a computer?

When we sit at a table, we interact with a chair, with the Earth, with air. When we go along the road, we interact with the road, with the Earth, with the air.
When we work on a computer, we interact with a computer, with a chair, with the Earth, with air.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.