What is mind contain of? What are the contain of the mind?Are emotions being mind contain or they are from of mind energy?how does mind differ from each other?how  person being act differently.?
Here's the standard answer of what the mind is according to Buddhism. 4 aggregates. 


Feelings. (Pleasant, unpleasant, neither pleasant nor unpleasant.)
Perception. (Spontaneous recognition)
Volitional formations.
Consciousness. (6 consciousnesses, 5 physical sense base consciousness and 1 mind consciousness.) 


We all have the same structure of the mind. The difference from person to person is merely that different feelings at different time for different people, (only 3 possibilities)

We can possibly speak different languages, so our perception of sounds is different, I perceive Russian language sound as noise, those who knows the language perceives their meaning spontaneously. 

We choose to react differently to different things, but we all have the same basic template to choose from. Metta, or anger, or generosity, or greed. Emotions fall under the category of volitional formations.

We can be conscious of different things at different times. Like he's sleeping, I am awake etc. 

The mind object can be anything, including the 4 aggregates of the mind itself, it's perceived via the mind base, and when mind consciousness arise to come together, we have contact of mind object. When contact happens, feelings arises and is dependent on what contact it is, what perception we have of the contact etc.