A pen is an instrument used to either write or draw with ink (as opposed to the graphite used in a pencil). Based upon this, as well as Psalm 45:1, a pen can often represent a writing gift or skill in the use of words. Ink as opposed to graphite would tend to indicate that this is a more permanent gift or something that will have lasting impact. The style, shape and other distinguishing characteristics of the particular symbol will also impact its specific meaning.
* Symbol meanings provided by www.mydreamstories.com should not be used as a dream dictionary. They are for reference only and both dreamer and interpreter should be careful to listen to the voice of Holy Spirit as to what any particular symbol means in any specific dream.