Character is long-standing habit.

Our character is basically a composite of our habits. Because they are consistent, often unconcious patterns, they constantly, daily, express our character...

In words are seen the state of mind and character and disposition of the speaker

A single bad habit will mar an otherwise faultless character, as an ink-drop soileth the pure white page

Yoga says instinct is a trace of an old experience that has been repeated many times and the impressions have sunk down to the bottom of the mental lake. Although they go down, they aren’t completely erased. Don’t think you ever forget anything. All experiences are stored in the chittam; and, when the proper atmosphere is created, they come to the surface again. When we do something several times it forms a habit. Continue with that habit for a long time, and it becomes your character. Continue with that character and eventually, perhaps in another life, it comes up as instinct. (92)

Out of our beliefs are born deeds; out of our deeds we form habits; out of our habits grows our character; and on our character we build our destiny.